Weathering and Erosion Quiz

What is freeze-thaw weathering?

• Plants and animals break down rocks

• Rain causes rocks to rot

• Water gets into the cracks of rocks and freezes

• Rocks are heated and cooled repeatedly

What happens during onion-skin weathering?

• Rocks peel off in layers

• Water freezes and expands

• Wind carries sand to wear down rocks

• Acid from rain rots the rocks

Which type of weathering is caused by plants and animals?

• Freeze-thaw weathering

• Onion-skin weathering

• Biological weathering

• Chemical weathering

What role does rain play in chemical weathering?

• It freezes and expands

• It carries sand to erode rocks

• It helps plants grow in cracks

• It contains acid that rots rocks

How does erosion work with weathering?

• Erosion removes loosened material

• Erosion makes rocks peel off

• Erosion causes rocks to freeze

• Erosion loosens material

What is load in river vocabulary?

• The path of the river

• Rocks carried by river

• The bottom of a river

• The sides of a river

How are waterfalls formed?

• By the river carrying rocks downstream

• By falling water wearing away softer rock

• By wind eroding the cliff sides

• By ice scraping rocks in a valley

What causes river bends to form?

• Fast current on the inside of the bend

• Slow current in the river bed

• Slow current on the outside of the bend

• Fast current on the outside of the bend

What is a meander?

• A flat land on each side of a river

• A river with many bends

• The bottom of a river

• The path of the river

What happens during coastal erosion?

• Rivers carry sand to the sea

• Waves hit rocks and wear them away

• Wind shapes rocks in the desert

• Ice scrapes rocks in a valley