Intro to Fossils

What do scientists now think that fossils are?

• The remains of ancient creatures

• Types of rocks that form when molten rock cools

• Expensive watches and jewelry

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NGSS.MS-LS4-1

This fossil shows "trails" left by ancient worms in mud. What type of fossil would this be?

• Trace Fossil

• Body Fossil

• None of these

Scientists group fossils into two groups, ____ and ____

• Body Fossils

• Trace Fossils

• Hard Fossils

• Soft Fossils

This fossil shows the bones of an ancient sauropod dinosaur. What type of fossil is this?

• Trace Fossil

• Body Fossil

• None of these

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NGSS.MS-LS4-1

Which of the following is true about fossilization?

• Most creatures do NOT become fossils

• Most creatures DO become fossils

• Most creatures become fossils, but they are hard to find

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Creatures with mostly "soft" parts (jellyfish, worms) _____

• Do not fossilize easily

• Fossilize very often and are common

Creatures who are likely to fossilize _____ (choose ALL that are true)

• have hard parts

• are buried quickly

• lived on land

• were very large

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Which of the following events would be likely to create fossils?

• Mudslides

• Sandstorms

• Volcanic Ash

• Rain

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NGSS.MS-LS4-1

Fossils found at The Burgess Shale are unique and rate because _____

• They are of "soft" bodied creatures

• They are found in igneous rocks

• They are billions of years old

• They were made in tar

Which of these describes a fossil?

• a desert that used to have a body of water in it

• a species that no longer lives anywhere on Earth

• a scientist who studies the history of life on Earth

• an ancient organism or its trace that has been preserved

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2