Fossil Formation

Fossils from the Gobi Desert helped scientists learn that:

• fossils of cynobacteria exist

• dinosaurs laid eggs

• sabretooths were carnivores

• bats lived millions of years ago

Tags

NGSS.MS-LS4-1

A leaf preserved in hard transparent material is found in:

• a mold

• a trace fossil

• fossilized amber

Some fossils are the:

• life in shells

• casts of shells

• minerals in shells

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Petrified wood is made of:

• minerals

• cells

• sediment

Amber is hardened:

• bark-like material from cone-bearing trees

• gumlike material from cone-bearing trees

• needlelike material from cone-bearing trees

Which of the following is a fossil fuel?

• oil

• petrified wood

• minerals

• fossils

What kind of a fossil could be made by the filled-in space left by a clam?

• mold

• amber

• imprint

• cast

The hollow impression of a dinosaur bone is:

• a cast

• an original-remains fossil

• an imprint

• a mold

Carbonized fossils are made of:

• the carbon remains of the original organism

• carbon which replaced the plant or animal

• a cast of coal

• a mold left in coal

The soft parts of animals which have become fossils are usually destroyed by:

• bacteria

• oxygen in the air

• chemical reactions

• scavengers