NGSS.4-ESS2-1

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.
• Rocks are broken down through chemical changes.
• Rocks are worn away from acid in plant roots.
• Rocks broken down by machinery.

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NGSS.4-ESS2-1

Wind blowing sand from one location to another

• Weathering
• Erosion
• Deposition

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NGSS.4-ESS2-1

What is the wearing away or breaking down of rocks called?

• Deposition
• Erosion
• Glaciers
• Weathering

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NGSS.4-ESS2-1

Which would most likely increase the erosion caused by a stream?

• Increased Rainfall

• Decreased animal life

• Decreased temperature

• Increased Evaporation

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NGSS.4-ESS2-1

Ricky created a model of a glacier to help explain how glaciers change the surface of Earth. He froze two large blocks of ice. One block was pure water. The other was water mixed with sand and rocks. He took both blocks and rubbed them across a sheet of tinfoil. The block of pure water slid smoothly over the tinfoil. The block with sand and rocks ripped the tinfoil in many places. How does Ricky's model explain how glaciers change Earth's surface?

• The rocks and sand contained in most glaciers create grooves in Earth's surface.

• The rocks and sand contained in some glaciers fill the grooves in Earth's surface.

• Pure glaciers and glaciers that contain rocks and sand affect the Earth in exactly the same way.

• The water in pure glaciers cools Earth's surface.

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NGSS.4-ESS2-1

The Grand Canyon is more than 400 km long and in some places almost 2 km deep. Which model best represents the main process that formed the Grand Canyon?

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NGSS.4-ESS2-1

Which of the following was formed through erosion?

• Eiffel Tower

• The Grand Canyon

• Mt. Rushmore

• The Pyramids of Giza

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NGSS.4-ESS2-1

Which of the following was formed through erosion?

• Eiffel Tower

• The Grand Canyon

• Mt. Rushmore

• The Pyramids of Giza

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NGSS.4-ESS2-1

Which statement best describes the processes of weathering and erosion?

• Weathering and erosion are directly responsible for the breakdown of any type of rock into smaller particles and the carrying away of the loose sediments.

• Weathering and erosion are directly responsible for depositing loose sediments on the bottom of the ocean, forming layers of sediment.

• Weathering and erosion are directly responsible for the amount of water in a river that transports sediments to the sea.

• Weathering and erosion are directly responsible for the transportation, deposition and compaction of loose sediments on the seafloor.

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NGSS.4-ESS2-1

Select 2: Water and ice cause weathering and erosion on Earth's surface.

• Atmosphere

• Biosphere

• Geosphere

• Hydrosphere

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NGSS.4-ESS2-1