GHANA CHRISTIAN INTERNATIONAL HIGH SCHOOL
ASSESSMENT TEST 1
                                         CELLS, MATERIALS, FORCE & ENERGY
SUBJECT:           INTEGRATED SCIENCE
YEAR:              2024/2025
DURATION:             1 HOUR
Student’s Name:...........................................................................................
Date of Exams: …………………………………………………….
Student’s Class: …………………………………………
INSTRUCTIONS
Answer ALL questions from this paper within the time given.
Total marks for this Paper is 100%.
Subject Teachers: Mr. Nelson Teye Nartey & Mr. Bismark Adjei
1. Jason draws a diagram of a plant cell.
                                                B                                                  C
                                                                                                    D
                               chloroplast
           a. Where does aerobic respiration happen in this cell?
                Circle from the letters:                A, B, C                 or     D.                                      [1]
           b. Name the part where aerobic respiration occurs? ……………………………………………[1]
           c. Name the part labelled B...............................................................................[1]
           d. State two features which you can see in the diagram that are not found in animal cells.
                       i. ........................................................................................................................................
                      ii. ....................................................................................................................................[2]
         d.    Explain why a microscope must be used to see a plant cell like this.
              ..........................................................................................................................................
              ......................................................................................................................................[1]
   2. Nuella looks at the diagram of an animal cell.
(a) Write down the name of structure A. …………………………………………………………. [1]
(b) Write down the function of structure A.
                                                                                                                                                   [1]
    (c) Write down the name of structure C. ………………………………………………………………….. [1]
    (d) Write down the function of structure C.
                                                                                                                       [1]
    (e) Write down the names of the structures labeled B and D
                               B…………………………………………………………………………….[1]
                               D…………………………………………………………………………….[1]
    3      Nicole investigates the rate of decomposition of slices of apple.
           Nicole :
           •      puts one slice of apple into each of the three dishes
           •      keeps the dishes at different temperatures
           •      records the mass of each slice of apple every day for five days.
                              at 4°C                     at 20°C                     at 30°C
    (a) Write down the independent variable in this investigation.
                                                                                                                 [1]
    (b) Nicole wants her investigation to be a fair test.
                 Identify three control variables for her investigation.
3                                                                                                    [2]
    (c) Nicole measures the mass of each slice of apple every day for five days.
           She uses this information to calculate the rate of decomposition.
    (i)    Which two pieces of equipment does Nicole use to make these measurements?
               ……………………………………..and …………………………………………………..                                                   [2]
    (ii)       Describe how Nicole uses these measurements to calculate the rate of decomposition.
                                                                                               [1]
4. Year 9 pupils of GCIHS take turns to look at biological cells under the light microscope.
      (a) The 1st set was different cells of Euglena sp.
      Euglena is a single-celled organism.
      One of the new classes (9F) makes a drawing of what was viewed.
      Take a good look at it.
                                     flagellum
                                                              eye spot
                             cytoplasm
                                                                   nucleus
                                                                   chloroplast
                            cell membrane
     Explain why euglena is difficult to classify as either a plant cell or an animal cell by people who study biology.
                                                                                                     [1]
       (b) The 2nd set was a group of specialized cells.
           They were collected from both plant and animal sources.
           The other new class (9I), makes two drawings of what was viewed under the microscope
                 cell A                                          root hair cell
           i.   What is the name of cell A? …………………………………………………. [1]
           ii. Explain how the structure of the root hair cell is adapted to its function.
                                                                                                                [1]
       (c) The 3rd set was viewing viruses under the microscope.
           Charles thinks that a virus is a living organism.
           Shiloh does not agree with Charles.
           Explain why Charles and Shiloh both think they are correct.
Charles:………………………………………………………………………………………………………………………
Shiloh:………………………………………………………………………………………………………………………[2]
       (d) The incomplete dichotomous key shows different features of vertebrates.
           Write words from the list in the boxes to complete the key.
    Amphibian            Bird          Fish           Mammal                Reptile
                             vertebrate
                       fur                   no fur
                                  feathers                no feathers
                                             dry scaly skin              moist skin
                                                              scales                     no scales
                                                                                                     [2]
5. (a) The diagram shows a species of butterfly.
       Tick (✓) the correct box which gives Nana Kwadwo a description of the word species.
       The butterflies breed together and all their offspring are female.
       The butterflies breed together but do not produce offspring.
       The butterflies breed together and produce fertile offspring.
      The butterflies breed together and produce offspring that are not fertile
                                                                              [1]
   (b) This question is about cells, tissues and organs.
   Stem cells are able to turn into many other types of cells that form different tissues.
    Nana Kwame too has learnt that different tissues are used to build organs. This is shown in the diagram.
                                  A                                   skeleton
                              muscle cell                                 heart
    stem
    cells
                             nerve cell                                    B
                            secretory cell                             testis
(a) Name cell A.
Choose from the list.     Blood cell         Bone cell          Liver cell          Sperm cell        [1]
(b) Name organ B.
Choose from the list:    Kidney              Salivary gland       Skull             Spinal cord       [1]
(c) Help Nana Kofi draw straight lines to match each description to its correct diagram below
                                                                                                            [3]
6. The diagram below shows 5 different arthropods.
   These arthropods all have jointed legs.
    Look at the key.                                   arthropods with jointed legs
                      has three pairs of legs                                                   has four pairs of legs
                                insects                                                                  arachnids
            does not                                has                                         has a                does no
              have                                 wings                                        curved                haveta
             wings                                                                                tail              curved tail
                                has one pair                 has two pairs
                                 of wings                    of wings
            Formica                Calliphora               Aeshna                            Scorpio               Argiope
      Use the key to find the names of arthropods V, W, X, Y and Z.
      Write your answers in the table.
                                 Name                                                    Letter
                                 Aeshna
                                 Argiope
                                 Calliphora
                                 Formica
                                 Scorpio
                                                                                                                                        [5]
7. (a) There are seven characteristics of living organisms.
    Complete Josie’s quiz with the appropriate term for each description.
                                                      The characteristics of living organisms
           1.   What is the process of getting rid of waste?..............................................................................
           2.   What is the process of increasing the size or mass of an organism? ……………………………………
           3.   What is the process of making more of the same type organism? ………………………………………..
           4.   What is the process of detecting changes in the surroundings? ………………………………………….
           5.   What is the process of getting energy from food? ………………………………………………………….
                                                                                                                                              [5]
8. (a) Microorganisms are made of cells.
   How many cells does a typical microorganism contain? ………………………………………………………[2]
   (b) Put the structures in order from largest to smallest.
     organ system                           cell                    organ                      tissue
   largest
   smallest                                                                            [4]
9. This question is about the states of matter taught in the 1st year of Junior High School.
   Look at the diagrams showing the particles in a solid and a gas.
               a solid                                            a gas
  (a) Gases are easily compressed (squashed) but solids are not easily compressed.
      Explain why.
                                                                                                     [1]
  (b) Solids keep their own shape but gases fill the container they are put in.
      Explain why.
                                                                                                      [1]
   (c) When a substance condenses, it changes from a ............................... to a ................................ [1]
   (d) Look at the particle models of some substances on the next page.
     (i) Which particle models represent pure compounds? ………….. and ………………[1]
             Explain your answer.
                                                                                                                [1]
   (ii) Which particle model represents a mixture of elements?            ……………… [1/2]
       Which particle represents a mixture of compounds? ………………[1/2]
10. Bernardo investigates change of state.
                                                               apparatus X
                            Crushed
                                                                       beaker
                              i ce
                                                                            g a u ze
                        tripod
                                              HEAT
     He puts crushed ice into a beaker and heats it gently.
     Every 2 minutes Bernardo records the temperature using apparatus X.
          (a)       What is the name of apparatus X?
                                                       ……………...........................................................[1]
            (b)            The table shows Bernardo’s results.
                                time of heating in minutes                               temperature in °C
                                                        0                                                        0
                                                        2                                                        0
                                                        4                                                       20
                                                        6                                                       40
                                                        8                                                       50
                                                       10                                                       80
                       (i) Describe the pattern in these results after the first 2 minutes.
                      ..................................................................................................................................
                       ..............................................................................................................................[1]
                   (ii) Which result does not fit this pattern?
                                                              temperature ....................... 0C                                      [1]
             (c) Complete these sentences.
       In the first 2 minutes ice changes state from a ...................................................to a .........................................
       In the next two minutes the particles gain more ...............................................and move ..................................
                                                                                                                                [2]
11. Air contains a mixture of gases.
      John views a pie chart that shows the percentages of the different gases in clean dry air.
        a. Look at the his pie chart.
               i. Name gas A. …………………………………………………………[1]
               ii. Name gas B. ………………………………………………………….[1]
              iii. Gas C is a mixture of gases. Name one of these gases. …………………………………………[1]
       b. Large areas of rainforest are being cleared by deforestation.
             The trees are burnt after they have been cut down.
             This increases the percentage of one gas in the surrounding air.
             Which gas? …………………………………………………………….[1]
12. Look at the model of a diagram of an atom.
                                                                  electron
                                                                  part    A
     (a)     Write down the name of part A. ……………………………………………….. [1]
     (b)     Which two particles make up part A?
           …………..………………………………and……………………………………… [1]
     (c)     Which scientist developed the nuclear or planetary model of the atom?
                                                                              ___________ [1]
     (d)     Write down the charge on an electron. …………………………………………. [1]
     (e)     The electrons in an atom are held in position. They do not escape from the atom.
            Explain how electrons are held in position. Use ideas about the charges on the particles.
                                                                                                    [1]
13. Look at the diagram showing part of the Periodic Table.
                                        H                                                           H e
  Li       B e                                               B     C       N   O          F         N e
 N a       M g                                               Al    S i     P   S     C l            A r
  K        C a         Transition elements
                                     l
(a) The electronic structure of lithium is written as 2.1.
       Draw and Write down the electronic structure of chlorine.
                                                                                    [2]
(b) Write down the symbol for the atom which has 12 protons in its nucleus.
                                                                    ……………………….. .. [1]
(c) How many protons are in an atom of fluorine, F?
                                                                                      [1]
(d) A sodium atom, Na, forms a sodium ion, Na+.
    Describe, in terms of electrons, how a sodium ion is made from a sodium atom.
                                                                                              [1]
(e) Neon is in Group 8 of the Periodic Table.
    Neon is an unreactive gas at room temperature.
    Argon is also in Group 8.
   Suggest one property of argon.
       ………………………………………………………………………………………………………..[1]
(f) Chlorine gas, salt water and sodium chloride all contain chlorine.
      Draw lines from these substances to the correct type of substance.
                                                                                      [2]
14. Look at the information about different atoms.
  Use the information above to answer the following questions.
          (a) Which two atoms have 10 neutrons in their nuclei?
                       _________________________ and _______________________                [2]
          (b) Which atom has six electrons in its outermost shell (orbit)?
                                               _______________________________              [1]
          (c) Some atoms have the same numbers of protons and neutrons.
              There are two of these types of atoms in the list. Which two?
                      __________________________ and ___________________________ [2]
          (d) Which two atoms have three electron shells around the nucleus?
                      _______________________ and ___________________________                     [2]
15. Ashley wants to calculate the average speed of a toy car travelling down a slope.
     He releases the car from the starting point.
     He does not push the car.
                                                     starting point
               angle of slope in degrees
                                                                             NOT TO SCALE
 a.   Ashley takes measurements of distance and time.
      Write down the names of the pieces of equipment Ashley uses to measure distance and time.
             Distance ………………………………………                                 Time      …………..…………………             [2]
 b.   Describe how Ashley uses the distance and the time to calculate the average speed of the toy car.
                           ………….………………………………………………………… [1]
 c.   Ashley repeats the investigation using different angles of the slope.
      Look at his results.
                    angle of slope in           distance in               time in      average speed
                        degrees                   metres                 seconds            in m / s
                           10                        1.0                      1.6             0.63
                           20                        1.0                      2.0             0.50
                           30                        1.0                      1.1           0.91
      Ashley makes a prediction,
                   ‘The greater the angle of the slope, the greater the speed of the car.’
                 Give one reason why Ashley’s results support his prediction and
                        one reason why Ashley’s results do not support his prediction.
          support his prediction
          do not support his prediction                                                                                                            [2]
16. Consider these questions about forces
    (a) Agyare jumps up and down on a trampoline.
                    Agyare
                                                                                   trampoline
         (i) Write down the name of the force that pulls Agyare towards the trampoline.
                                    ..............................................................................................................................[1]
          (ii) Draw a line with an arrow (→) to show the direction of this force.
                Start the line on the large dot on Agyare.                                                                                 [1]
         (iii) Agyare lands on the trampoline. She bends her knees and pushes hard against the trampoline.
               Complete the sentence. Choose the best word from the list.
              force       friction        mass        weight
      Agyare exerts more .............................................................. so she jumps higher                    [1]
   (b) Anna - Nelissa investigates floating objects.
    She uses a small plastic box in a bowl of water.
    She puts weights into the box.
    She measures the depth of the box below the water.
        (i) Anna – Nelissa needs to measure the weights in the box.
            What piece of equipment should she use?
            Tick (✓) the correct box.
                                                                      [1]
        (ii) Anna – Nelissa needs to measure the depth of the box below the water.
           What piece of equipment should she use?
           Tick (✓) the correct box.
                                                           [1]
17. Draw a line from each type of energy to its description
                                                                                     [5]