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Mechanical Weathering

Authored by Dan Griggs

Science

7th Grade

NGSS covered

Used 2+ times

Mechanical Weathering
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11 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Occurs when rock is physically crushed, split open, or ground into smaller pieces that eventually become soil.

Mechanical weathering

Chemical weathering

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Heating rock expands. Cooling rock contracts. The resulting crack looks like frost wedging, but occurs much more slowly. This form of weathering can cause large sections of rock to fall from cliffs.

anaimal activity

water abrasion

thermal expansion

wind abrasion

Tags

NGSS.MS-ESS2-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An erosional process caused by the grinding action of a glacier on a rock

Glacial abrasion

wind abrasion

gravity abrasion

thermal expansion

Tags

NGSS.MS-ESS2-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The splitting of rock caused by the expansion of freezing water in cracks.

frost wedging

animal activity

gravity abrasion

salt wedging

Tags

NGSS.MS-ESS2-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Removes outer layers of rock in sheets when internal pressure is slowly released. The pressure release is caused by the uncovering of rock that was once deeply buried.

thermal expansion

water abrasion

exfoliation

glacial abrasion

Tags

NGSS.MS-ESS2-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Salt from seawater that crystallizes in the pores or cracks of rocks. The pressure created from this can be enough to break a rock apart.

salt wedging

water abrasion

exfoliation

glacial abrasion

Tags

NGSS.MS-ESS2-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Roots break up the surrounding rocks by growing into a small cracks in rock, and slowly growing wider within the crack.

anaimal activity

root pry

thermal expansion

wind abrasion

Tags

NGSS.MS-ESS2-2

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