Generation Genius - Rock Layers & Geologic Time

Front

What can fossils tell us about the Earth's history?

Back

Fossils can tell us about the types of organisms that existed in the past.

Front

When sediment is moved around by wind or water it is called ______________.

Back

Erosion.

Front

______________ are rocks that contain evidence of past life on Earth.

Back

Fossils.

Front

Explain how sediment is deposited to form Earth's layers.

Back

Sediment is deposited in layers through erosion, transportation, and sedimentation processes.

Front

The geologic time scale tracks Earth’s estimated ____________________ year history.

Back

4.6 billion.

Front

What is sedimentation?

Back

Sedimentation is the process of settling or being deposited as sediment.

Front

What are sedimentary rocks?

Back

Sedimentary rocks are formed from the accumulation of sediment.

Front

What is the difference between erosion and weathering?

Back

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

Front

What role do fossils play in understanding geologic time?

Back

Fossils help scientists determine the relative ages of rock layers and the history of life on Earth.

Front

What is the significance of the geologic time scale?

Back

The geologic time scale provides a framework for understanding Earth's history and the timing of events.