Fossils

What is a fossil?

• an old dinosaur bone

• a broken shell

• evidence of past life on Earth

Has the landscape you live in always looked the way it does now?

• yes

• no

Oldest rock layers are at the:

• bottom

• middle

• top

What can be found 100 miles away from the ocean?

• whale tails

• dolphin fins

• shark teeth

Is it possible to find ancient fossils right at the earth's surface?

• yes

• no

How do scientists think the bones in the Sharktooth Hill bone bed became jumbled up?

• sand dunes

• ocean currents

• dinosaurs moved them

How do we know the central part of the US was once covered by ocean?

• they found actual living sea creatures

• fossils from dinosaurs were found

• fossils from sea creatures were found

The branch of science that studies fossils of animals and plants is:

• paleontology

• geography

• meteorology

A rock layer is:

• a layer of large amounts of fossils

• a layer of rock formed one on top of the other

• a layer of sand

What type of rocks are made when sand and mud gets laid down in layers and eventually turn to rock?

• sedimentary

• silt

• clay