Layers of the Earth and Rock Types

Front

What is the Crust?

Back

Earth's outermost layer

Front

What is the mantle?

Back

the layer of the earth between the crust and the core

Front

What is the Core?

Back

The middle layer of the Earth

Front

How did we find out about the layers of the Earth?

Back

- The Presence of volcanoes - The study of rocks (geology) - The study of seismic waves from earthquakes

Front

What are the three kinds of weathering?

Back

physical, chemical, biological

Front

What is another name for physical weathering?

Back

mechanical weathering

Front

What are the three kinds of physical weathering?

Back

unloading, freezing, heating

Front

Define physical weathering

Back

breaking down of rocks without changing its chemical composition

Front

Define Biological weathering

Back

Breaking down of rock by animals, plants or people

Front

How do plants break down rock?

Back

As the roots grow they expand and break apart rock.