fossils

Petrified wood

Imprint

Amber

Mold

Press the seashell in model clay.

Draw the seashell

Press the seashell in model clay to make a mold then fill it in.

Trace the seashell

amber

cast

mold

minerals

A plant or animal must be covered by sediment.

A plant or animal must die and decompose.

Sediments fill a a mold to form a cast.

An earthquake shifts the land up.

All living organisms leave behind fossils.

Fossils show that camels never change.

Some living things have not really changed in millions of years.

Plant fossils have never changed.

An animal ate the fish.

The water covered the area long ago.

Today's fish looks the same

The fish is endangered.

sedimentary rock

metamorphic rock

igneous rock

fossils

bone

a cast

an animal track

amber fossil

mineral

footprint

cast

petrified wood

Animals are smaller than plants.

Plants have harder bodies than animals.

Plans have softer bodies than animals.

Animals eat plants.

fossil

extinct

endangered

minerals

fossil

extinct

endangered

dinosaur