Evidence from Rocks and Fossils

I think scientists examine rock layers to learn about organisms that lived in the past.

I think scientists examine rock layers to learn about how the surface of the Earth changes over time.

I don't think rock layers help scientists learn about organisms that lived in the past or how the surface of the Earth has changed. They examine rock layers to identify rocks and minerals.

I think scientists examine rock layers to learn about organisms that lived in the past and how the surface of the Earth has changed.

Fossils give scientists information about environments of the past.

Scientists can also determine the relative age of fossils based on the layer of rock in which they are found.

Some fossils also provide clues to a rock layer's relative age.

How wind and water deposit most of the sediments.

tiny bits of soil or rock

sediments pressed together

remains or imprints of living things from the past

sediments pressed together in layers

tiny bits of soil or rock that have been broken down and deposited

remains or imprints of living things fromthe past

remains or imprints of living things from the past

ammonites

tiny bits of soil or rock broken down and deposited

volcano eruption

car crash

earthquakes

flow of river

Sediments

Fossils

Sands

Sedimentary rocks