Mechanical vs. Chemical Weathering

Acid rain breaking down rocks.

• Mechanical Weathering

• Chemical Weathering

Tags

NGSS.MS-ESS2-2

Animals moving rocks against each other and breaking them down.

• Mechanical Weathering

• Chemical Weathering

Tags

NGSS.MS-ESS2-2

Another mineral absorbing the water and turning it into a new substance.

• Mechanical Weathering

• Chemical Weathering

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-2

Freshwater smoothing out rock in a river.

• Mechanical Weathering

• Chemical Weathering

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NGSS.MS-ESS2-2

Ice getting into cracks and breaking rocks.

• Mechanical Weathering

• Chemical Weathering

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NGSS.MS-ESS2-2

Saltwater breaking down rocks.

• Mechanical Weathering

• Chemical Weathering

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NGSS.MS-ESS2-2

Water with minerals present breaking down rocks.

• Mechanical Weathering

• Chemical Weathering

Tags

NGSS.MS-ESS2-2

Wind breaking down rock over time.

• Mechanical Weathering

• Chemical Weathering

Tags

NGSS.MS-ESS2-2

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

Tags

NGSS.MS-ESS2-2

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

• weathering
• erosion
• soil conservation
• decomposition

Tags

NGSS.MS-ESS2-2