LE Grade 7 Science Q1 W6 FV
LE Grade 7 Science Q1 W6 FV
Quarter 1
Lesson Exemplar    Week
for Science         6
Learning Activity Sheet for Science Grade 7
Quarter 1: Week 6
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                                        Management Team
                             JOCELYN DR ANDAYA CESO IV, Director IV
                      CRISTITO A. ECO CESO III, Assistant Regional Director
                MICAH G. PACHECO, OIC-Chief Education Program Supervisor, CLMD
                              DENNIS M. MENDOZA, Regional EPS/ LRMS Head
           MYRON WILLIE III B. ROQUE, SDO Valenzuela LRMS Education Program Supervisor
MATATAG                    School                                                                Grade Level      7
K to 10 Curriculum         Name of Teacher                                                       Learning Area    Science
Weekly Lesson Log          Teaching Dates and Time                                               Quarter          1 Week 6
                                                                     1
                       c. realize the importance
                          of using standard units
                          of measurement.
                       Context                      Collaboration                Collaboration                 Context
   E. Instructional
                       Connection                   Context                      Context                       Connection
      Design
                       Ideational                   Connection                   Connection                    Ideational
      Framework
                                                    Ideational                   Ideational
                       Reflective thinking          Reflective thinking          Reflective thinking           Reflective thinking
   F. 21st Century
                       Critical thinking            Critical thinking            Critical thinking             Critical thinking
      Skills
                                                    Informed decision making
                    Planning, Following, and        Planning, Following, and     Planning, following, and
                    Recording Scientific            Recording Scientific         recording scientific
                    Investigations: Different       Investigations-Physical      investigations-Methods of
                                                                                                               Solutions and Types of
II. CONTENT         Standards of Units.             Quantities. Making           Organizing Data based on
                                                                                                               Solutions
                    Different Laboratory            accurate measurement         the type of Physical
                    Tools Used to Gather            using laboratory             Quantity
                    Physical Quantities.            apparatus
III. LEARNING RESOURCES
                    Gupta, S. V. (2010). Units      Gupta, S. V. (2010). Units   Gupta, S. V. (2010). Units    Chemistry: Exploring Life
                    of Measurement: Past,           of Measurement: Past,        of Measurement: Past,         Through Science Second
                    Present and Future.             Present and Future.          Present and Future.           Edition pp: 47-48
                    International System of         International System of      International System of
                    Units. Germany: Springer        Units. Germany: Springer     Units. Germany: Springer
                    Berlin Heidelberg. Pp 47-       Berlin Heidelberg. Pp 47-    Berlin Heidelberg. Pp 47-65
    A. References   65                              65
                                                                   2
                                                                                                                    OpenAI.(2024). The Magical
                                                                                                                    Mix-Up: A Tale of Solutions
                                                                                                                    Retrieved from ChatGPT
IV. TEACHING AND LEARNING PROCEDURES
Before/Pre-Lesson Proper
                      Present this scenario to        Let the learners read each    Let’s recall…                   Let’s recall…
                      the class:                      scenario and then             Let the learners read the       Present the following
                                                      complete the given table.     scenario and fill in the        pictures to the class and let
                       Diego is a “plantito” who                                    table with necessary data.      them classify the materials
                       loves to grow different        Scenario #1: Anthony's                                        as to homogeneous or
                       kinds of fruits and            teacher instructed him to     Scenario#1 Darren’s             heterogeneous mixtures.
                       vegetables. One of his         measure the window's          teacher instructed him to
                       plants bears a very long       length and purchase a         measure the cabinet's           1.
                       fruit called sponge gourd      new curtain rod and           length, width, and height
                       (patola). In his excitement,   curtains for their            for the classroom in order
                       he wants to know how           classroom to reduce the       to reduce the quantity of
                       long it becomes by             amount of sunlight that       clutter in the classroom.
                       measuring using his            enters directly and                                           2.
                       hands.                         distracts his classmates.     Scenario #2 Via is a
                                                      What measuring tool           chemist. Water is one of
Activating Prior       Guide Questions:               should he need to use?        the components for the          3.
Knowledge                                                                           research she is working on
                       1. Do you think Diego’s        Scenario #2: Joy and Ana      solutions. Next, she wants
                       idea of measurement is         are classmates. They are      to calculate how much
                       correct?                       doing science experiments     water she will need to          4.
                                                      in which they need two        create a solution. What
                       2. Will his measurement        different rocks that can be   measuring device does she
                       be accurate?                   found in their                need?
                                                      surroundings. They want
                       3. What tool can you           to first weigh the rocks to     Physical
                                                                                      Quantity
                                                                                                 Unit
                                                                                                        Measuring
                                                                                                          tools
                                                                                                                    5.
                       suggest to accurately          compare their mass. What
                       measure the sponge             measuring tool should he
                       gourd?                         need to use?
                                                                                                                    images source: canva.com
                                                      Scenario #3: Allan is a
                                                      dedicated athlete. To keep
                                                      his body in a healthy state
                                                                      3
and to assess how far he      Sample Answers:                               Answers:
can run each day, he            Physical
                                                   Unit
                                                             Measuring      1. heterogeneous
                                Quantity                       tools
makes sure to run every                                                     2. heterogeneous
morning. He even keeps        length, width,   meter/        meter stick,   3. homogeneous
track of the time it takes    height           centimeter    measuring
                                                             tape
                                                                            4. homogenous
him to cover a given                                                        5. homogenous
distance. What measuring       volume          milliliter/   graduated
tool should he need to                         cubic         cylinder
                                               centimeter
use?
                4
 Scenarios     Physical   Uni        Meas
               Quantity    t         uring
                                     tools
Scenario
#1:
Anthony
Scenario
#2: Joy
and Ana
Scenario
#3: Allan
Scenario
#4: Bianca
Scenario
#5:
Kristoff
Sample Answers:
 Scenarios      Physic        Unit    Me
                  al                   as
                Quanti                uri
                  ty                  ng
                                      too
                                       ls
                          5
                    The teacher will ask the     The teacher will solicit the   Present and explain the        Present and explain the
                    learners to share their      ideas of the learners on       lesson objectives to the       lesson objectives to the
                    thoughts about the           the lesson of the day          learners.                      learners by letting them
                    answers to the questions     based on what is                                              read the statements
                    below:                       presented in the previous                                     altogether.
                                                 activity on analyzing          to identify the physical
                    Which is heavier, one        scenarios.                     quantities to be measured
                    kilogram of nail or one                                     and collected.                 identify solute and solvent
                    kilogram of cotton? Why      “From your answers in the                                     in a solution;
                    do you think so?             different scenarios, what      to select an appropriate
                                                 have you realized?”            data organization method       describe the appearance of
                                                                                based on the nature of the     different types of solutions
Lesson                                           After soliciting answers       measurements.                  and
Purpose/Intention                                from the learners, the
                                                 teacher will direct them to    to display data organization   cite the significance of
                                                 the learning intentions for    by means of labeling and       classifying solutions in
                                                 the day.                       presenting measurements.       real-life situations.
                    Let the learners match the   Present the following          The teacher will set the       Let the learners unlock the
                    letter of a physical         words to the learners          class to play a game of 4      meaning of the underlined
                    quantity that can be         along with their meanings.     pics 1 word, and the           words in the sentences
                    measured with the objects    Prompt the learners to         students will guess the        below using context clues.
                    given below. Let them        construct sentences using      word related to 4 pictures
Lesson Language     write the answer in the      these words that illustrate    presented in each set.         1. When you add sugar to
Practice            space provided.              their meanings in both                                        water, the sugar dissolves
                                                 scientific contexts and                                       completely, creating a
                    A. mass                      everyday situations.                                          sweet solution.
                    B. temperature
                    C. length                    1. duration - the length of                                   2. When you add food
                    D. volume                    time during which                                             coloring to a glass of water,
                                                                 6
                            something continues or                                      the water acts as the
___1. the space occupied    exists.                                                     solvent that spreads the
     by an object.                                                                      color evenly, creating a
___2. the amount of         2. magnitude - the size or                                  homogeneous appearance.
     matter or substance    extent of a physical
     that makes up an       quantity, such as length,                                   3. When you mix salt into
     object                 time, or strength.                                          water, the salt acts as the
___3. the degree of                                         BEATL         AGEZORIN      solute and disappears into
     hotness or coldness    3. accurate – correct;          (table)        (organize)   the liquid.
     of an object           without error; closely
___4. the measurement       matching a standard or                                      Sample Answers:
     which identifies the   expected value.
     distance between                                                                   dissolves – to mix so well
     two points             4. precise – exact, being                                   with another substances
                            very detailed and clear in                                  that it becomes no longer
Answers:                    terms of measurement                                        visible.
1. D
2. A                        Possible Answers:              IPE HARPG         AATD       solution - is a mixture
3. B                                                        (pie graph)                 where one substance is
                                                                            (data)
4. C                        1. The duration of the                                      completely dissolved in
                            experiment was two hours,                                   another substance.
                            during which we monitored
                            the reaction.                                               solvent – it is a liquid that
                               The duration of the                                      can dissolve other
                            movie was longer than                                       substances
                            expected, but it was really
                            enjoyable.                                                  homogenous – uniform in
                                                               TEAMMEENSUR              appearance; it means that a
                            2. The earthquake's                 (measurement)           mixture looks the same
                            magnitude of 7.5 on the                                     throughout
                            Richter scale caused          Note: Teacher may replace
                            widespread damage in the      the pictures used as          solute - is a substance that
                            region.                       necessary.                    is dissolved in a liquid (the
                               The magnitude of the                                     solvent) to form a solution.
                            storm was frightening,
                            with strong winds and
                            heavy rain.
                                            7
                                                    3. The thermometer gave
                                                    an accurate reading of 25
                                                    degrees Celsius, which
                                                    matched the temperature
                                                    outside.
                                                       The map was accurate,
                                                    showing the correct path to
                                                    the museum
During/Lesson Proper
                       The learners will be asked   Let the learners read the     The learners will read the     The learners will read the
                       to read the passage about    text below.                   passage about data             story below, and answer
                       the history of                                             gathering and shall answer     the provided guide
                       measurement below:              Measuring Physical         a set of guide questions.      questions.
                                                          Quantities
                        Ancient Measurement                                           Data Organization               Magic in the Lab
                           Systems: From              How far is your school
                           Egypt to Rome            from your home? How             Scientists collect and        Team Magic Mixers,
Reading the Key                                     much is the table heavier     record data during their       consisting of Emma and
Idea/Stem               Once upon a time,           than the chair? How much      work. They represent this      Alex, decided to experiment
                       ancient civilizations        more water can be filled in   data in many formats, such     with powders and liquids to
                       needed ways to measure       a jug than that in a glass?   as tables, narrative notes,    create a sparkling potion.
                       the world around them. In    How long is the duration      graphs, or diagrams. Data      Team Liquid Wizards, led
                       Egypt, people used the       of a day? Such questions      can be recorded in different   by Ryan, opted for mixing
                       cubit, the length from an    can be answered only          ways depending on the type     colorful liquids to concoct a
                       elbow to a fingertip, to     when you are able to          of investigation and what      mesmerizing solution. As
                       build their magnificent      measure the physical          the scientist is trying to     they began their
                       pyramids. Meanwhile, in                                    learn. The way in which
                                                                    8
Mesopotamia, a society        quantities like length,         data are organized is                 experiments, the classroom
thriving on trade used a      mass, time, volume, etc.        important when                        buzzed with excitement.
system based on the                                           interpreting and drawing
number 60, influencing          The quantities which          conclusions from the data.              Enter Team Gas Gurus,
how we measure time           can be measured are                                                   the third team led by the
today.                        called physical quantities.       A data table is one type of         clever and mischievous
                              Length, mass, time,             graphic organizer used                twins, Lily and Leo. While
  In the Indus Valley,        volume, etc., are examples      frequently in science. It is          others were engrossed in
traders used uniform          of physical quantities.         used especially during                their potions and mixtures,
weights and measures,         These quantities share two      laboratory experiments                Lily and Leo had a plan
suggesting a central          key aspects: their              when qualitative and/or               involving magical gases.
authority. As civilizations   magnitude, which                                                      They gathered a selection
                                                              quantitative data are
grew, the Greeks and          describes their size, and                                             of enchanted gases and set
                                                              collected. Data tables are
Romans refined these          the unit used for                                                     out to create a bubbly elixir
early systems. The Greeks     measurement. For                not randomly constructed.             that would dazzle everyone.
introduced units like the     instance, if a table's length   They have at least two
foot and Stadion, while the   measures 80 cm, '80'            columns or rows, and                    The teams encountered
Romans standardized           represents its magnitude,       specific data is entered in           challenges along the way.
measurements across           and 'cm' denotes the unit       each column/row. To                   Emma and Alex discovered
their empire with units       of measurement."                design a data table, you              that not all powders
like the mile and pound.                                      must know what the                    dissolved easily, while
During the Middle Ages,         Measuring instruments         independent and dependent             Ryan’s team struggled to
measurement units varied      are used to measure             variables are.                        find the right proportions
widely across Europe.         various physical quantities                                           for their liquid mixture. Lily
However, the Magna Carta      such as length, mass,                                                 and Leo faced the tricky
                                                               Imagine you are
in England called for         time, volume, etc. These                                              nature of gases but with
                                                              conducting an experiment
uniformity, leading to the    measuring instruments                                                 their ingenuity, they
yard, foot, and inch we       make accurate                   to test how air pressure              managed to capture the
recognize today. This         measurements to measure         affects the boiling point of          magic in their elixir.
system was essential for      a specific physical             water. Here’s how you
trade and construction in     quantity that is used in        might design a data table:             After hours of brewing
a developing society.         scientific investigation.                                             and stirring, the teams
                                                                Pressure (kPa)   Boiling point of
                                                                                   water (°C)       proudly presented their
  The chaos of pre-                                                   80
                                                                      90
                                                                                        95
                                                                                        97
                                                                                                    magical solutions to
revolutionary France’s                                               100               100          Professor Alchemistus.
                                                                     110               103
measurements led to the                                              120               105          Team Magic Mixers
birth of the metric system                                                                          unveiled a shimmering
in 1795. The meter was                                                                              potion that changed colors
                                               9
defined as one ten-                 In this data table, there     with each swirl. Team
millionth of the distance          are two columns labeled        Liquid Wizards showcased
from the equator to the            “pressure (kPa)" and           a vibrant mixture that
North Pole, simplifying            "boiling point of water (°C)." seemed to dance in the
and unifying                       Each column has specific       flask, and Team Gas Gurus
measurements.                      data entered.                  presented a fizzing elixir
                                                                  that released captivating
 In 1960, the                        The air pressure (in kPa) is bubbles.
International System of            the independent variable
Units (SI) was established,        because it is deliberately       Professor Alchemistus
further standardizing              changed or controlled in the was delighted. “Now, my
measurements globally.             experiment. The data is        young alchemists, you have
The meter, kilogram, and           placed in the first column.    successfully explored three
second became universal                                           typoes of solutions: solid in
and essential for science,           On the other hand, boiling liquid, liquid in liquid, and
technology, and daily life.        point of water (in °C) is the  gas in liquid. Each solution
By 2019, even the                  dependent variable because is a magical blend of
kilogram's definition              it depends on the pressure     different substances.”
evolved, linking it to the         you set. The data is placed
Planck constant, moving                                             As the students marveled
                                   on the second column.
away from physical                                                at their creations, Professor
artifacts.                                                        Alchemistus revealed that
                                     Using graphs and charts      understanding solutions
  From the ancient cubit to        is another way of organizing was like unlocking the
the modern meter, the              data. Data is visually         secrets of magical potions
journey of standard units          represented using graphs or in Chemlandia. The
of measurement reflects            charts such as bar charts,     students left the Potion
humanity's pursuit of              pie charts, or line graphs.    Laboratory that day, not
precision and fairness,            Graphs or charts provide a     only with a deeper
making our complex world           visual representation of       knowledge of solutions but
a bit simpler and more             data trends and patterns.      also with a sense of wonder
connected.                                                        about the magical world of
                                     The line graph below         chemistry.
  The basic SI                     represents the data
(International System )            presented in the data table      And so, in the land of
units of measurement               below                          Chemlandia, the students
include the following:                                              continued their journey of
                                                                    discovery, applying the
                              10
  Physical
                Unit of
               Measure    Symbol
                                                                        lessons learned from their
  Quantity
                 ment                                                   magical mix-up to unravel
    mass       kilogram     kg
                                                                        the mysteries of enchanted
   length       meter       m
                                                                        realm of chemistry.
                cubic
   volume                  m3
                meter
time second s
temperature Kelvin K
                                   11
    trade and scientific
    collaboration?
Sample Answers:
1. The passage talks about
  how measurement units
  have changed and
  developed over time, from
  ancient times to the
  present-day International
  System of Units (SI). It
  tells how different
  societies created and
  standardized
  measurements to help
  with building, trading,
  and scientific progress.
2. The Greeks introduced
  units like the foot and the
  Stadion, which were
  used for measuring
  distances and
  contributed to the
  refinement of early
  measurement systems.
3. The Romans
  standardized
  measurements across
  their empire by
  introducing and enforcing
  units such as the mile
  and pound, which
  ensured uniformity and
  consistency in trade and
  construction throughout
  their vast territories.
                                12
4. The establishment of the
  International System of
  Units (SI) in 1960
  provided a universal and
  standardized system of
  measurement, with units
  like the meter, kilogram,
  and second becoming
  essential for science,
  technology, and daily life.
  This facilitated consistent
  and accurate
  measurements globally.
5. Challenges faced by
  ancient civilizations in
  standardizing units of
  measurement likely
  included regional
  variations, lack of central
  authority, difficulties in
  communication and trade
  between different
  regions, and the reliance
  on physical artifacts
  which could vary or be
  lost.
6. Standardized units of
  measurement facilitate
  international trade by
  ensuring that goods are
  measured and quantified
  consistently, reducing
  misunderstandings and
  errors. In scientific
  collaboration, they enable
  researchers from
  different parts of the
  world to share and
                                13
                        compare data accurately,
                        enhancing cooperation
                        and the advancement of
                        knowledge.
                       The teacher will show an      Each group will be given       Guide questions:              Guide questions:
                       illustration with a short     the materials needed to        1. What are the different     1. Describe the solutions
                       story to the class, and let   perform the actual             ways in which scientists      prepared by each team of
                       the learners share their      measurement in each            represent their data?         students.
                       ideas based on the            station. Once done with                                         a. Team Magic Mixers
                       provided guide questions.     the first, they will proceed                                    b. Team Liquid Wizards
                                                                                    2. When are the data tables
                                                     to the next until they have                                     c. Team Gas Gurus
                                                     completed all stations.        commonly used in science?
                        A group of friends were                                                                   2. What components were
                        having lunch at the          Station #1: Measure the        3. What do you need when      present in the solutions
                        park. As they ate, one       length of the board in         constructing a data table?    that they prepared? What
                        of them served water         meters.                                                      do you call each
                        into each glass. Out of                                     4. Why is it important to     component?
                                                     Station #2: Measure the        know the independent and
                        curiosity, one of them
                                                     mass of a book in                                            3. What are the three types
Developing              asked how they could                                        dependent variables when
                                                     kilogram.                                                    of solutions prepared by
Understanding of the    know if each glass had                                      designing a data table?       the three teams?
Key Idea/Stem
                        the same amount or           Station #3: Measure the
                        quantity of water.           volume of the water in         5. Why is the organization
                                                     liters.                        of data important before
                                                                                    interpreting and drawing
                                                     Station #4: Measure the        conclusions?
                       1. What is the best way to    temperature of the hot
                       measure the quantity of       water in degrees Celsius.
                                                                                    Sample Answers:
                       water?                        Be careful in handling the
                                                     hot water.
                                                                                    1. Scientists use tables,
                       2. What instruments
                                                                                    narrative notes, graphs
                       found in the laboratory       Station #5: Measure the
                                                                                    (such as bar charts, pie
                       can be used to measure        time it takes for a group
                       the amount or quantity of     mate to walk from one          charts, line graphs),
                       liquids?                      corner of the classroom to     diagrams and lists in
                                                     the opposite end.              representing their data.
                                                                     14
Sample Answers:
                               Scen
                               ario
                                       Trial
                                        1
                                               Trial
                                                2
                                                        Trial
                                                         3
                                                                Aver
                                                                age
                                                                       2. Data tables are frequently
1. The best way to                                                     used in science during
                               Stati
measure the quantity of        on #1                                   laboratory experiments to
water in the glasses is to     Stati
                                                                       collect qualitative and / or
use a graduated cylinder       on #2                                   quantitative data.
or a measuring cup to          Stati
ensure each glass contains     on #3                                   3. When you are
the same volume of water.      Stati                                   constructing a table you
                               on #4
                                                                       need to identify the
2. Instruments commonly        Stati                                   dependent and independent
                               on #5
found in a laboratory that                                             variables.
can be used to measure
the amount or quantity of     Note: The teacher will                   4. Knowing the independent
liquids include graduated     demonstrate or guide                     and dependent variables is
cylinders, volumetric         learners on how to                       important when designing a
flasks, pipettes, burettes,   properly use the                         data table because it allows
and beakers.                  measuring instruments                    you to organize and record
                              involved.                                data systematically,
                                                                       ensuring clarity in how
                                                                       changes in the independent
                                                                       variable affect the
                                                                       dependent variable. This
                                                                       organization is important for
                                                                       accurate data analysis and
                                                                       interpretation.
                                                                       5. Organization of data
                                                                       facilitates clear
                                                                       understanding and analysis
                                                                       of data, enables
                                                                       comparisons and
                                                                       identification of patterns
                                                                       and supports accurate
                                                                       interpretations and
                                                                       conclusions.
                                                       15
                       Classify to Identify           The teacher will facilitate a   Think – Pair - Share                       The teacher will present
                       The teacher will post          discussion using the            The teacher will instruct                  various types of solutions
                       pictures of different          following guide questions:      the learners to read the                   using the table below.
                       laboratory apparatus                                           passage below and                          Based on the provided
                       related to measuring,          1. How did you measure          construct a data table to                  compositions of the
                       along with their names.           the length of the            organize the data to be                    solutions, the learners will
                                                         board? Aside from the        collected in the experiment                identify the solute and
                                                         one that you used in         involved.                                  solvent.
                                                         the activity, what
                                                         other measuring tools        Juan wanted to find out                    Please refer to Activity 4.3
                                                         can be used to               whether the concentration                  of the Learning Activity
                          digital         beaker         measure length?              of salt in water affected how              Sheet Week 6.
                       thermometer                                                    long it took to cool down.
                                                      2. How did you measure          He put four identical plastic              Answers:
                                                         the mass of the book?        glasses, each containing                      Materials       Type
                                                                                                                                                      of
                                                                                                                                                             Solute    Solven
                                                                                                                                                                          t
                                                         What other measuring         225ml of water and                                            solut
                                                                                                                                                     ion
                                                         tools will be used to        different concentrations of
                        electronic                       measure the mass?            salt, into a freezer. The                   1. air              gas    Oxygen    Nitroge
cylinder 30%
                                                                      16
                                           6. What is the                                                       5. brass        solid
                                                                                                                                 in
                                                                                                                                            Zinc     Copper
devices by writing their                      scientific                  1. What variables did you             6. dental       liquid    Mercury     Silver
names under the physical                      investigation?              include in the data table to          amalgam           in
                                                                                                                (contains 3%     solid
quantities they measure in                                                effectively organize Juan’s           mercury and
the table below. 7. Which of the stations experiment's results? 74% silver)
 Physical
 Quantity
             m
             as
                  len
                  gth
                        vol
                        um
                              tim
                              e
                                    tem
                                    pera
                                              did you find easiest to
             s          e           ture      accomplish?                 Sample Answer:                       NOTE: The teacher will
 Unit of                                                                  The data table include               supply more examples of
 Measure
                                                                          columns for each salt                solute and solvent which
 Measuring                                 Sample Answers:                concentration (0%, 10%,              are not familiar to the
 devices
                                                                          20%, 30%), rows for each             students. Further
                                           1. The length of the board     trial (Trial 1, Trial 2, Trial 3),   discussions will be done
                                           can be measured using a        and a column to record the           afterwards.
Guide Questions:                           ruler or a measuring tape.     time it took for each solution
                                           Other measuring tools          to cool to 3 degrees Celsius.
1. How did you identify the                include meter sticks.                                               Follow-up activity:
appropriate tools for                                                     2. How might organizing              Give examples of solutions
measuring the given                        2. The mass of a book can      data into a clear and                that you can find at home.
physical quantities?                       be measured using a            structured format, such as           Be sure to write them in
                                           balance or a weighing          a data table, benefit                the appropriate columns
2. How did you identify                    scale. Other tools include a   scientists like Juan in              below.
the units of measurement                   triple beam balance and an     analyzing and interpreting
appropriate to each                        electronic scale for more      the results of experiments?           Materials    Type of     Solute     Solvent
physical quantity?                         precise measurements.
                                                                                                                            Solution
Sample Answer: 1.
3. Which part of the                       3. The volume of the water     It allows scientists to clearly       2.
activity did you find                      can be measured using a        document and record                   3.
easiest to do? Which one                   graduated cylinder or a        experimental results,
was the most difficult?                    measuring cup. Other tools     including variables like salt
Why?                                       include pipettes, burettes,    concentrations and cooling
                                           and volumetric flasks for      times in Juan's experiment.
4. Why is it important to                  more precise                   This organized format helps
use the correct units of                   measurements.                  in identifying trends and
measurement in                                                            patterns across multiple
measuring objects?                                                        trials and conditions.
                                                          17
Answers:                      4. The temperature of the
                              hot water can be measured
mass                          using a thermometer.
unit of measure: kilogram
(kg)                          5. Time can be measured
measuring devices:            using a stopwatch or a
    ● electronic balance      clock.
    ● triple beam balance
                              6. Measuring tools are
length                        important in scientific
unit of measure: meter (m)    investigations because
measuring devices:            they provide accurate and
   ● ruler                    precise data, which is
   ● measuring tape           essential for making
                              reliable conclusions and
volume                        comparisons.
unit of measure: milliliter
(mL)
measuring devices:
   ● beaker
   ● graduated cylinder
time
unit of measure: second (s)
measuring devices:
   ● digital clock
   ● stop watch
temperature
unit of measure: Celsius
(°C)
measuring devices:
    ● digital thermometer
    ● laboratory
        thermometer
                      Let the learners answer        Let the learners organize      Let the learners answer the     Let the learners answer the
                      the following questions by     the following steps in the     following multiple-choice       following multiple-choice
                      writing the letter of the      correct order for the          questions by writing the        questions by writing the
                      correct answer in their        proper handling of a beam      letter of the correct answer.   letter of the correct answer.
                      answer sheets.                 balance.
                                                                                    For items 1- 3. Read the        1. What does the term
                      1. Which of the following      ___Put the rear weights in     passage:                        "solvent" mean in a
                      is NOT a definition of         the notches. (4)                                               solution?
                      measurement?                   ___Assemble the pan in         Sally was in the laboratory.    A. A gaseous component
                      Measurement is _______.        the top-notch. (2)             She was experimenting with      B. A type of solid particle
                       A. how close a given set of   ___Zero out the balance.       the types of solutions using    C. The substance being
                          measurements is true       (3)                            sugar and water. She used           dissolved
                          to its value.              ___Clean the pan. (1)          3 graduated cylinders and a     D. The substance doing the
                       B. a technique in which       ___Make sure you only          weighing scale for the              dissolving
                          the properties of an       have two decimal places in     amount of sugar in her
Evaluating Learning
                          object are determined.     your answer. (7)               experiment. Her first           2. A solution is made by
                       C. a process of               ___Place the object in the     measurement was 100             dissolving some salt in a
                          determining how large      center of the pan. (5)         grams of sugar dissolved in     beaker of water. The salt is
                          or small a physical        ___Balance out the object      100 ml of water. The second     referred to as the ___:
                          quantity is.               using all three weights. (6)   measurement was 200             A. solute
                       D. the process of                                            grams of sugar dissolved in     B. filtrate
                          associating numbers                                       100 ml of water, and lastly,    C. solvent
                          with physical quantities                                  the third measurement was       D. solution
                          and phenomena.                                            400 grams of sugar
                                                                                    dissolved in 100 ml of          3. Which among the
                      2. Which best describes                                       water.                          following is an example of a
                      the importance of using                                                                       solid solution?
                      standard units of                                             1. What tools did Sally use     A. copper dissolved in gold
                      measurement?                                                  in her experiment?              B. alcohol dissolved in
                                                                                                                        water
                                                                     20
A. It ensures accurate and        A. graduated cylinders and   C. sugar dissolved in
   reproducible results              a weighing scale            water
B. It makes experiments           B. beakers and a             D. salt dissolved in water
   harder to understand              microscope
C. It creates confusion in        C. test tubes and a Bunsen   4. A bottle of whiskey
   data reporting                    burner                    states that it is made up of
D. It reduces the number          D. pipettes and a pH meter   40% alcohol. Which one of
   of tools needed in the                                      the following statements
   laboratory.                    2. Which of the following    about whiskey is
                                  tables is a CORRECT          incorrect?
3. Which of the following         representation of the data   A. Whiskey is a solution.
physical quantities uses a        for Sally’s experiment?      B. The alcohol is the
meter as the unit of               A.                             solvent.
measurement?                            Water     Sugar
                                                               C. Whiskey is not a
A. mass                                 100 ml   100 grams        suspension.
B. time                                 100 ml    400 ml
                                                               D. The alcohol is dissolved
C. length                                                         in water.
                                        200 ml   100 grams
D. temperature
                                  B.                           5. Why are solutions
4. Which tool is used to                Water     Sugar        important in everyday life?
measure the mass of an                  100 ml   100 grams      A. They help in dissolving
object?                                                            and mixing raw
                                        100 ml   200 grams
A. ruler                                                           materials.
B. tape measure                         100 ml   400 grams      B. They assist in
C. thermometer                                                     dissolving and removing
                                  C.
D. platform balance                     Water     Sugar            dirt and stains.
                                                                C. They help in dissolving
                                        200 ml   100 grams
5. Cesar wants to measure                                          and delivering
the right amount of water               400 ml   200 grams
                                                                   medications to the body.
to be placed in his mini                100 ml   400 grams      D. All of the above
aquarium. What unit of
measurement must he use           D.
                                        Water      Sugar
to do it?                                                      Answers:
                                        100 ml   400 grams
A. meter (m)                                                   1. D
B. cubic meter (m3)                     100 ml   100 grams     2. A
C. kilogram (kg)                        100 ml   200 grams
                                                               3. A
D. Kelvin (K)                                                  4. B
                                                               5. D
                             21
Answers:        3. What were the
1. A            measurements for the third
2. A            set-up?
3. C            A. 100 ml of water with 100
4. D               grams of sugar
5. B            B. 100 ml of water with 200
                   grams of water
                C. 100 ml of water with 300
                   grams of sugar
                D. 100 ml of water with
                   400 grams of sugar
           22
                                                        Answers:
                                                        1. A
                                                        2. B
                                                        3. D
                                                        4. C
                                                        5. D
                            Have the students
                            complete the following
                            additional activity to
                            enhance their
                            measurement reading
                            skills.
                            A. Determine the
                            measurement of the object
                            shown on each measuring
                            device below:
                                           23
5.
_______cm
6.
_______cm
7. 8.
___mL. ____°C
9. 10.
___mL. ____°C
              24
             B. Directions: Make marks
             on the following triple
             beam balances to show
             the grams indicated:
1.
2.
3.
                     65mL
             4.
                     36°C
             5.
8.60cm
Remarks
Reflection
25