Unit 3: Lesson 1: Slow changes to Earth's landscape

What's this?

• Erosion

• Weathering

Tags

NGSS.MS-ESS2-2

what's this?

• Erosion

• Weathering

Tags

NGSS.MS-ESS2-2

What causes erosion?

• Wind, water, ice, or gravity moving soil and rocks.

• Rocks breaking apart due to temperature changes.

• Plant roots growing into cracks in rocks.

• Chemical reactions dissolving minerals in rocks.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What is the best example of erosion?

• A glacier carving a valley as it moves.

• A rock splitting because of freezing water.

• Rust forming on an iron-rich rock.

• A tree growing roots into a boulder.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Which process happens first in nature?

• Erosion, because it moves materials to a new place.

• Erosion and weathering always happen at the same time.

• Weathering, because it breaks down materials where they are.

• Neither process happens naturally.

What term describes the process of soil being blown away by strong winds?

• Deposition

• Weathering

• Erosion

• Freezing

Tags

NGSS.MS-ESS2-2