G2 T4L2 Earth Changes Slowly | Baamboozle - Baamboozle

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Grade 2 Science Elevate Topic 4 Lesson 2 about Earth Changes Slowly

Study Slideshow

How do mountains form?

Layers of rock push together.

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Which mountains are older, the Himalayan or the Appalachian.

Appalachian.

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How do you know that deep layers of rock can push together quickly or slowly?

Earthquakes - quick. Mountains -slow.

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Do mountains form quickly or slowly?

slowly

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What is weathering?

The breaking up of rock.

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What can cause weathering?

plants, water and ice

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What is erosion?

Soil, sand, and small bits of a rock are removed.

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What can cause erosion?

rain, snow, wind, people, animals

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What is deposition?

Wind and water drop sand, soil, and small bits of rock in a new place.

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Where does this usually happen?

Rivers drop them at deltas.

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What are river deltas?

Places where rivers flow into the ocean.

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How can ocean waves cause erosion?

Move sand and rock away from the shore.

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Why should we prevent ocean wave erosion?

To protect the shape of the land, houses and other things nearby the shore.

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What happens to rainwater after it hits land?

It goes into streams and rivers.

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What happens to streams and rivers when it rains?

They fill up and move faster.

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What is an example of erosion in Taiwan?

Queen's head

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