Earth ScienceUnit 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 ResourcesLesson Overview:

1) What do we already know?

2) Vocabulary

3) Drawings

4) Main Ideas

5) ReviewEarth’s Water: Lesson 3

The Water Cycle What do we already know?

BrainPOP Teaser1) 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

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Earth’s Water: Lesson 3

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

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Earth’s Water: Lesson 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

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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

Freshwater Resources: Drawings (pg. 204)Page 4

Earth’s Water: Lesson 3

Freshwater Resources: Main Ideas1) 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

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Earth’s Water: Lesson 3

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.

Freshwater Resources: Main IdeasPage 6

Earth’s Water: Lesson 3

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

Freshwater Resources: Main IdeasPage 7

Earth’s Water: Lesson 3

4) How are fresh water resources cleaned? (pg. 210-211)

a) We send it through a water treatment plant where it becomes drinkable.

Freshwater Resources: Main IdeasPage 8

Earth’s Water: Lesson 3

Freshwater Resources: Review1) Summarize the main ideas

1) Click to Watch!

2) Think, Talk, and Write

Page 9

Earth’s Water: Lesson 3