Chapter 7 CKLA Unit 5 Grade 4 Geology

Front

What is weathering?

Back

Weathering is the process that breaks down rocks into smaller pieces through physical or chemical means.

Front

What is erosion?

Back

Erosion is the process that transports broken pieces of rock and soil from one location to another, often by wind, water, or ice.

Front

How do weathering and erosion work together?

Back

Weathering breaks down rocks, while erosion transports the broken pieces to new locations.

Front

What is chemical weathering?

Back

Chemical weathering is the process that changes the chemical composition of rocks, often through reactions with water, air, or substances released by plants.

Front

What is an example of chemical weathering?

Back

An example of chemical weathering is water dissolving salt in a rock.

Front

What is ice wedging?

Back

Ice wedging is the process where water expands as it freezes, pushing outward and enlarging cracks in rocks.

Front

What is the role of plants in weathering?

Back

Plants can release substances that help break down rocks, contributing to chemical weathering.

Front

What is physical weathering?

Back

Physical weathering is the process that breaks rocks into smaller pieces without changing their chemical composition.

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks, while erosion moves the broken pieces to different locations.

Front

What causes erosion?

Back

Erosion can be caused by natural forces such as wind, water, and ice.