Weathering and Erosion 1

Front

What happens to a rock when it weathers?

Back

It breaks into small pieces.

Front

Tree roots cause

Back

physical weathering.

Front

How do physical and chemical weathering differ?

Back

only chemical weathering produces new materials.

Front

Physical and chemical weathering both

Back

break rocks into smaller pieces.

Front

How does wind cause weathering?

Back

wind blows sand against the rock's surface breaking it down

Front

This student is blowing sand from one part of the pan to another demonstrating ________ to the class.

Back

erosion

Front

Which statement DOES NOT describe how rocks can be weathered?

Back

rock pieces are moved from one place to another

Front

Water getting into cracks, freezing, and breaking the rocks or pavement apart

Back

Weathering

Front

Rain washing away soil from a hillside

Back

Erosion

Front

The diagram shows a rock with water trapped in the cracks during the day and at night. 

Which statement best explains why this process results in weathering?
Options: frozen water acts as a solute, water expands when it freezes, the mass of water increases when it freezes, frozen water dissolves most types of rock

Back

water expands when it freezes