Earth Science
Unit Overview:
Chapter 4 – Earth’s Water
•Lesson 1 – Earth: The Blue Planet
•Lesson 2 – The Water Cycle
•Lesson 3 – Fresh Water Resources
•Lesson 4 – California’s Water Supply
Chapter 5 – Earth’s Weather
•Lesson 1 – Earth’s Atmosphere
•Lesson 2 – Air Current and Wind
•Lesson 3 – Ocean’s and Air Temperature
•Lesson 4 – Severe Weather
•Lesson 5 – Predicting Weather
Chapter 6 – The Solar System
•Lesson 1 – The Sun
•Lesson 2 – The Structure of the Solar System
•Lesson 3 – Gravity and Orbit
Freshwater Resources
Lesson Overview:
1) What do we already know?
2) Vocabulary
3) Drawings
4) Main Ideas
5) Review
Earth’s Water: Lesson 3
Page 1
The Water Cycle
What do we already know?
BrainPOP Teaser
1) What makes water change form?
a) Temperature
2) What happens to water after it
evaporates?
a) turns into water vapor
3) How do clouds form?
a) Water vapor condenses to form
clouds
Earth’s Water: Lesson 3
Page 2
Freshwater Resources: Vocabulary Part I
1) reservoir: a man made lake that is
used to store water
2) dam: a structure that stops the natural
flow of water
3) groundwater: Any water found beneath
the Earth’s surface
4) aquifer: an underground layer of rock
or soil that absorbs water
Earth’s Water: Lesson 3
Page 3
Freshwater Resources: Vocabulary Part II
5) water table: the area where water
collects underground
6) well: A hole drilled into the ground to
access water from the water table
7) watershed: the name for an area of
land in which water drains into a
specific river
Earth’s Water: Lesson 3
Freshwater Resources: Vocabulary
Part III
8)flood: when water overflows the banks of a
river, stream or lake.
9) Contaminate: to dirty or pollute clean water
10) pollute: to dirty or contaminate clean
water
Page 4
Freshwater Resources: Drawings (pg. 204)
Earth’s Water: Lesson 3
Page 5
Freshwater Resources: Main Ideas
1) Where is Earth’s usable fresh water found?
(pg. 204-205)
a) Ice sheets and glaciers
 Quick Check (pg. 205)
-Critical Thinking: What are some other bodies
of water that people can use as a source of
water?
a) Stream, rivers, lakes, reservoir and water
table
Earth’s Water: Lesson 3
Page 6
Freshwater Resources: Main Ideas
2) What is a watershed? (pg. 206-207)
a) Where the underground water feeds a
specific river or lake
 Quick Check (pg. 207)
-Critical Thinking: How could changes made
to land far away from a river affect its
flow?
a) The water in the water table could dry up
which would affect the amount of water in a
river or lake far away.
Earth’s Water: Lesson 3
Page 7
Freshwater Resources: Main Ideas
3) What causes polluted water?
(pg. 208-209)
a) Oil and gas from vehicles, trash being put into bodies
of water, runoff of pollutants
 Quick Check (pg. 209)
-Problem and solution: Why do farmers and
homeowners use products that can
contaminate fresh water?
a) Fertilize plants and lawns, wash cars, killing bugs with
insecticides
Earth’s Water: Lesson 3
Page 8
Freshwater Resources: Main Ideas
4) How are fresh water resources
cleaned? (pg. 210-211)
a) We send it through a water treatment
plant where it becomes drinkable.
Earth’s Water: Lesson 3
Page 9
Freshwater Resources: Review
1) Summarize the main ideas
1) Click to Watch!
2) Think, Talk, and Write
Earth’s Water: Lesson 3