Rock Layers (Geologic Time)

Front

What is the process called when sediment is moved around by wind or water?

Back

Erosion

Front

What do we call the breaking down of rocks into smaller pieces?

Back

Weathering

Front

What is the name of a scientist who studies the composition of the Earth, including rock layers?

Back

Geologist

Front

How many years does the geologic time scale represent in Earth's history?

Back

4.6 billion years

Front

What do paleontologists study?

Back

Fossils

Front

What is the difference between erosion and weathering?

Back

Erosion involves the movement of sediment, while weathering is the breaking down of rocks.

Front

What are fossils?

Back

Fossils are the preserved remains or traces of ancient organisms.

Front

What is the significance of the geologic time scale?

Back

It helps scientists understand the history of Earth and the timing of events.

Front

What is sediment?

Back

Sediment is small particles of rock and soil that are transported by wind or water.

Front

What role do geologists play in understanding Earth's history?

Back

Geologists study rock layers to interpret Earth's past environments and events.