4th Grade Unit 7 Rocks and Fossils

Front

What is a fossil?

Back

The remains or traces of an organism that lived long ago.

Front

True or False: Environments do not change over time.

Back

False

Front

What can fossils tell us?

Back

Fossils can tell us what animals looked like millions of years ago.

Front

What do petrified trees in the desert indicate?

Back

They are evidence that there was once far more water in the area.

Front

Where did aquatic fossils live?

Back

Aquatic fossils lived in water.

Front

What is the process of fossilization?

Back

The process by which organic material is replaced by minerals over time, turning it into a fossil.

Front

What is an extinct species?

Back

A species that no longer exists on Earth.

Front

What is the difference between a fossil and a rock?

Back

A fossil is the preserved remains of a living organism, while a rock is a solid mass of minerals.

Front

What can studying fossils help scientists understand?

Back

It helps scientists understand the history of life on Earth and how species have changed over time.

Front

What is sedimentary rock?

Back

A type of rock that forms from the accumulation of sediment, often containing fossils.