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Chapter 4 – Earth’s Water Lesson 1 – Earth: The Blue Planet © Brent Coley 2009 | www.mrcoley.com

Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

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Page 1: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

Chapter 4 – Earth’s Water

Lesson 1 – Earth: The Blue Planet

© Brent Coley 2009 | www.mrcoley.com

Page 2: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

How much of Earth is covered with water?

An ocean is a large body of saltwater.

About 70% of the Earth’ssurface is covered with oceans.

Page 3: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

How much of Earth is covered with water?

Oceans provide:food (fish, shrimp)fuel (oil from ocean bottom)recreation & transportation

The Pacific Ocean is the biggestand deepest ocean on Earth.

Page 4: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

How much of Earth is covered with water?

Fresh water contains little or nosalt.

Only 1% of Earth’s water isfresh water.

Page 5: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

How much of Earth is covered with water?

Most of Earth’s fresh water isfrozen in Antarctica.

Page 6: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

What makes oceans salty?Rain water falling on amountain is fresh.As it flows downhill, it picks upsalt from the soil and rocks.The water flows into tributaries(small streams or rivers).

Page 7: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

What makes oceans salty?Tributaries flow into a largerriver.

The river flows into the oceanand drops off a small amount ofsalt.

Page 8: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

What makes oceans salty?Ocean waves pound on rocksand sand, picking up salt andadding it to the oceans.

“Mountain Water Flow”Science in Motion Video

http://activities.macmillanmh.com/science/ca/scienceinmotion/Common/SIM.html?Module=../Grade5/Chapter4-MountainWaterFlow/

http://activities.macmillanmh.com/science/ca/scienceinmotion/Common/SIM.html?Module=../Grade5/Chapter4-MountainWaterFlow/

http://activities.macmillanmh.com/science/ca/scienceinmotion/Common/SIM.html?Module=../Grade5/Chapter4-MountainWaterFlow/

Page 9: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

What makes oceans salty?Some ocean water evaporates, changing from a liquid to a gas(water vapor).As the water vapor rises out of the ocean, the salt stays behind,making the remaining watersaltier.

Page 10: Chapter 4 – Earth’s Water · 2013-02-04 · How much of Earth is covered with water? An ocean is a large body of salt water. About 70% of the Earth’s surface is covered with

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