Fossils

Most things that ever lived are now extinct.

• true

• false

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CCSS.RI.4.8

CCSS.RI.5.8

CCSS.RI.6.1

CCSS.RL.4.5

CCSS.RL.6.1

Which of these best describes fossils?

• nonexistent

• easily formed

• important & rare

• common & unhelpful

Which of these is an example of a body fossil?

• woolly mammoth footprints

• a T. Rex bite mark

• a dodo bird nest

• a shark tooth

Which of these is an example of a trace fossil?

• footprints

• skin

• leaf

• skull

Which of the following terms best describes body fossils?

• made of stone

• rare

• mummified

• fake

Which of these is most likely to fossilize?

• jellyfish's very soft body

• crab claw, which is very hard

• fruit with a high water content

• horse's mane, which is made of hair

Why are deserts, tar pits & ice good places to find body fossils?

• most ancient organisms lived in these environments

• the largest ancient organisms lived in these environments

• many ancient organisms traveled to these places to die

• bacteria & other decomposers cannot thrive in these environments

What can you conclude from the fact that so many fossils involve shells, skeletons & teeth?

• these parts decay slower than other body parts

• bacteria & decomposers consume these parts first after an animal dies

• all organisms on earth have shells, skeletons or teeth

Although a cast fossil looks like an original bone or shell, how is it different?

• it has been liquefied

• it contains skin & hair

• it’s made of rock

• it is completely colorless

A mold fossil is most similar to:

• an insect trapped in tree sap

  an eggshell with no egg inside

• a replica of your teeth made at the dentist’s office

• a bone a dog buries in the ground

• an eggshell with no egg inside