Amplify Unit 3 Earth's Features

Front

What do different sedimentary rocks tell us about past environments?

Back

Different sediment builds up in different environments, so different kinds of sedimentary rocks form in different environments.

Front

Which layer of rock is typically the youngest?

Back

The youngest layer is usually the topmost layer.

Front

How do we determine the age of rock layers?

Back

Lower rock layers are older than the layers above them.

Front

What is a claim in a scientific argument?

Back

A claim is an answer to a question based on evidence.

Front

What does it mean to infer in geology?

Back

To infer means to draw conclusions about past environments based on the order of rock layers.

Front

What is the significance of conglomerate rocks?

Back

Conglomerate rocks can form in various environments, making it hard to determine specific past conditions.

Front

What is the role of geologists in studying rock layers?

Back

Geologists observe the order of rock layers to infer the order of past environments.

Front

What can the color of rocks indicate?

Back

The color of rocks, like red rocks, can indicate that the past environment was very sunny.

Front

What is sediment?

Back

Sediment is small particles of rock and soil that accumulate in layers.

Front

What is the principle of superposition?

Back

In undisturbed rock layers, the oldest layers are at the bottom and the youngest are at the top.