Fossils

Fossils are often found in hardened tree sap called

• imprint

• amber

• mold

• cast

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

• fossil

• egg

• extinct

• endangered

Tags

NGSS.MS-LS4-1

Which statement is true about fossils?

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

• Fossils are never organisms that lived in the sea

• Fossils found today are always terrestrial fossils

• Fossils can tell us how animals become extinct

Tags

NGSS.MS-LS4-1

What type of information can fossils provide to us?

• the color of animals from long ago

• the type of plants animals liked to eat

• the kind of organisms that lived long ago

• the type of water in an environment

Tags

NGSS.MS-LS4-1

Terrestrial fossils lived on _______________.

• water

• land

What answer best describes the relationship between cast fossils and mold fossils?

• Mold fossils are formed when minerals fill the cavity left by cast fossils.

• Cast fossils are formed when minerals fill the cavity left behind by mold fossils.

• Cast minerals and mold fossils are formed when animals leave a footprint in wet mud.

• Mold fossils and cast fossils are formed when dead animals are preserved in tree sap.

Someone discovered a saltwater fish fossil on the shore of a freshwater lake. Why could the fossils be found there?

• The fish was left there by a fisherman.

• The fish moved across the land to get to the lake long ago.

• The fish lived in the area long ago when it was covered by an ocean.

• The fish was left there long ago by a storm.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Which of these happens first when a fossil forms?

• The soft parts of a living thing become hard.

• Erosion wears away rock around the living thing.

• The hard parts of a living thing turn to rock.

• A living thing dies and is buried by mud.

Which part of an animal is most likely to become a fossil?

Hint: There are 2 correct answers.

• bones

• eyes

• heart

• teeth

• fur

Tags

NGSS.MS-LS4-1

• Turtle

• Dinosaur

• Lizard

• Fish

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2