Name: __________________________________
7th Grade
Science Date: Wednesday, October 5, 2016
Unit: Water’s Cycles and Homeroom:
Patterns ______________________________________
Lesson: WCP 22
OBJECTIVES: By the end of class, students will be able to…
SWBAT describe the four stages of the water cycle
DO NOW
Directions: Use the picture below to answer the questions.
1. Explain what is happening in number 2. Make sure to include the physical
change that water is going through in number 2. (Physical change: what state
of matter is water starting at and ending at?)
_____________________________________________________________
_____________________________________________________________
2. Explain what is happening in number 3. Make sure to include the physical
change that water is going through in number 2. (Physical change: what state
of matter is water start at and ending at?)
_____________________________________________________________
_____________________________________________________________
1
Practice BEYOND Perfection!!
Water Cycle: Below is a different representation of the water cycle. Answer the
questions to the best of your knowledge.
1. During evaporation water is going from a ___________ state to a
__________ state.
2. Where does condensation happen?
________________________________________________________________
________________________________________________________________
3. Define runoff:
________________________________________________________________
________________________________________________________________
4. Finish the statement. Precipitation happens when
________________________________________________________________
________________________________________________________________
2
I Do: Class Notes
Remember water changes states because ___________________________
has changed.
Let’s take it a little further and discuss what really is happening to water
molecules when they change states.
Water ENERGY:
1. In order for water molecules to go from a liquid state to a gas state, energy is
increased. Higher energy = higher _____________________________.
2. The main energy source that drives the Earth’s water cycle comes from
the ______________. Energy is put into the water cycle during
________________________. This is when water is going from a _____________
state to a _____________ state.
3. Energy is released when water cools down and changes back into a
___________________ state. This happens in the clouds during
____________________.
3
Now let’s take a journey through the water cycle:
1. Evaporation:
a. Water molecules are heated by ___________________ and turn into
____________________ _____________________(gas form).
b. This happens to ______________ sources of water on earth.
Ex: Lakes, oceans, rivers, streams, ponds, seas, EVEN PLANTS!!!!!!
c. When evaporation happens to plants it is called
______________________________! (Yes, the sun is so powerful it can
evaporate water from plants.)
2. Condensation:
a. Water molecules are ________________________ and come together
in ____________________.
b. During condensation water molecules go from a ______________
state to a _____________ state.
3. Precipitation:
a. Water molecules form heavy droplets that come down
______________________________________.
b. Examples of precipitation:
4
Guided Practice
Use the information discussed in the class notes section and label the following picture:
3.
2.
4.
1.
5.
Process Description Density of Molecules Energy
1.
3.
4.
5
The picture below is a close-up of what is happening in part 2 of the cycle on page 5.
Name to process and explain it in the space below:
2.
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
_____________________________________________________________
What is happening at number 5?
_____________________________________________________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
You Do: Independent Practice
Test Your Water Cycle Knowledge!
Directions: Answer the questions about The Water Cycle.
a. evaporation
Puddles get smaller and smaller due to b. condensation
c. precipitation
a. evaporation
Rain falling from the sky is b. condensation
c. precipitation
a. evaporation
Water vapor turning back to a liquid is b. condensation
c. precipitation
6
a. evaporation
Hail and sleet are types of b. condensation
c. precipitation
a. evaporation
The sun shining causes b. condensation
c. precipitation
a. rain
Water exists in three forms on earth, solid, liquid and b. ice
c. gas
a. evaporation
Rain and snow are the most common forms of b. condensation
c. precipitation
a. evaporation
Most water ________ comes from the ocean. b. condensation
c. precipitation
a. Two
Water exists on earth in ______ forms. b. Three
c. Four
a. stops at night
The Water Cycle b. is rain and snow
c. never stops
a. The Water Cycle
Evaporation, condensation, and precipitation form b. water droplets
c. clouds and rain
a. rain
Precipitation falls from the b. clouds
c. sky
How is transpiration different from evaporation?
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
7
What happens if…
The first drawing below shows water molecules at room temperature (20 C or 70 F).
Draw water molecules in each box to represent what happens at different
temperatures. Be careful!! Some changes in temperature mean a change in state.
Room temperature
(20 C / 70 F)
Hot Water (66 C / 150 F)
Molecules get ____________ dense than room
temperature water.
(Draw it!)
Cold Water (4 C / 39 F)
Molecules get ____________ dense than room
temperature water.
(Draw it!)
Ice (-5 C / 23 F)
Molecules get ____________ dense than room
temperature water.
(Draw it!)
Water Vapor
Molecules get ____________ dense than
room temperature water.
(Draw it!)
8
7th Grade Name: __________________________________
Science Date: October 5, 2016
Homeroom: ___________________________
Unit: Water’s Cycles and
Patterns
_______/5 = ________%
Lesson: WCP 22
DNG? Strive Due Date: A B C D F
Directions: Use the below to list and describe the steps of the water cycle.
Explain all 5 steps. Complete sentences are not necessary. (1/2 point each)
1. _________________________________________________________________________________
_________________________________________________________________________________
2. _________________________________________________________________________________
_________________________________________________________________________________
3. _________________________________________________________________________________
_________________________________________________________________________________
4. _________________________________________________________________________________
_________________________________________________________________________________
9
5. _________________________________________________________________________________
_________________________________________________________________________________
Directions: Circle or write in the correct answers for the questions below. (1/4 point
each)
1. How does water get from Earth’s 6. When is energy released in the
surface into the air? water cycle?
a. Condensation
a. Through precipitation b. Precipitation
b. Through condensation c. Transpiration
c. Through evaporation d. Evaporation
d. Through runoff
7. Rain, snow, sleet, and hail are all
2. Clouds form in the process of forms of
a. Precipitation a. Condensation
b. Evaporation b. Evaporation
c. Condensation c. Precipitation
d. Runoff d. Runoff
3. The_________ is the main driving 8. When water molecules get hotter,
force of the water cycle? they get
a. More dense
a. Sun b. Bigger
b. Wind c. Smaller
c. Moon d. Less dense
d. Water
9. The change of state from a gas to
4. In which state is water the least a liquid is called
dense?
a. Precipitation
a. Solid b. Condensation
b. Liquid c. Water vapor
c. Gas d. Evaporation
d. Melting
10. When water evaporates from
5. During which process do water plant leaves it is called
molecules get the most energy?
a. Boiling
a. Precipitation b. Transpiration
b. Evaporation 10 c. Transportation
c. Condensation d. Condensation
d. Freezing
