Weathering Quiz

Which type of weathering involves naturally produced chemicals?

• Physical

• Chemical

• Organic

• Thermal

What is one effect of organic weathering?

• Rocks become magnetic

• Rocks dissolve

• Rocks are worn away by plants and animals

• Rocks change color

How does heat affect rocks in physical weathering?

• It makes the rock melt

• It makes the rock expand and contract

• It makes the rock grow

• It makes the rock change color

What is the effect of water freezing in rock cracks?

• It smooths the rock

• It enlarges the cracks

• It colors the rock

• It polishes the rock

What natural force is responsible for wearing away rocks on the seashore?

• Wind

• Water

• Sunlight

• Earthquake

What happens when water freezes in the cracks of rocks?

• The cracks become smaller.

• The cracks disappear.

• The cracks become wider.

• The rocks melt.

What effect does heating and cooling have on rocks over time?

• Makes them stronger.

• Makes them change color.

• Makes them weak and parts break away.

• Makes them grow larger.

What is chemical weathering?

• The process of rocks breaking down due to physical forces.

• The weakening of rocks by chemicals from the environment.

• The movement of rocks by wind and water.

• The formation of rocks from molten lava.

What causes the limestone in the cave to dissolve?

• Strong winds

• Acidic rainwater

• Earthquakes

• High temperatures

How do animals contribute to organic weathering?

• By climbing over or around and burrowing into rocks

• By drinking water from the rocks

• By flying over the rocks

• By making sounds near the rocks