Lesson 4 and 5 Changing and cycling of Earth surface

Front

What is chemical weathering?

Back

Chemical weathering occurs when chemical reactions dissolve or change the minerals in rocks.

Front

How are metamorphic rocks formed?

Back

Metamorphic rocks are formed by the application of heat and pressure.

Front

What is mechanical weathering?

Back

Mechanical weathering breaks apart rocks by physical processes.

Front

How does water act as a weathering agent?

Back

Water acts as a weathering agent by dissolving minerals in rocks.

Front

What is sediment?

Back

Sediment is bits of rock, sand, and silt caused by the weathering of rocks.

Front

What is the process of weathering?

Back

Weathering is the process of rocks being broken down and carried away.

Front

What is erosion?

Back

Erosion is the movement of weathered materials from one location to another.

Front

What role does temperature play in weathering?

Back

Temperature changes can cause rocks to expand and contract, leading to physical weathering.

Front

What is the difference between chemical and mechanical weathering?

Back

Chemical weathering involves chemical changes in minerals, while mechanical weathering involves physical breakdown.

Front

How do plants contribute to weathering?

Back

Plants contribute to weathering by growing roots that can break apart rocks.