PLTW Earth Science Review

Rocks break down over time. What forms when a rock weathers into small pieces?

• crystals

• diamonds

• minerals

• sediments

Tags

NGSS.MS-ESS2-2

A plant grows near a rock. Over time, the rock breaks apart. What is it called when rocks break down?

• erosion

• deposition

• weathering

Tags

NGSS.MS-ESS2-2

What process causes eroded sediments to be dropped off in another place?

• weathering

• deposition

• erosion

• sediment

Tags

NGSS.MS-ESS2-4

What is erosion?

• The process by which soil or sediment is moved from one place to another by wind, water, or ice is called

• Natural process of breaking down rocks into smaller pieces

• The dropping of sediment after weathering or erosion

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

The process that breaks down rocks and other materials on Earth's surface is called

• Weathering
• Erosion

Tags

NGSS.MS-ESS2-2

How do plants weather rocks?

• Plants don't weather rocks.

• When roots grow into cracks of rocks and expand, the rock breaks.

• When the plant moves water from the roots to the leaves, the rock breaks.

Tags

NGSS.MS-ESS2-2

____________________ weathering is when rocks break into smaller fragments each with the same properties as the original.

• mechanical weathering

• chemical weathering

Freezing and thawing are two types of ________________ weathering.

• mechanical weathering

• chemical weathering

• mechanical weathering

• chemical weathering

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

Flowing water from streams and rivers can make sharp rocks smooth.

• mechanical weathering

• chemical weathering