What does it mean to retain characteristics over long periods of time?

• preserve

• nature

• fossils

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How something is without human intervention is _____.

• nature

• preserve

• fossils

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The preserved remains or trace of an organism that lived long ago are called _____.

• fossils

• preserve

• nature

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Fossils in the bottom layer of rocks are ​ (a)   than fossils found in higher layers.

• older
• younger

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A fossil is the _____ remains of an ancient organism

• preserved

• pressured

• pretty

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We can study fossils to learn what _____&_____ lived long ago.

• plants & animals

• clouds & rain

• cereal & milk

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DRAG & DROP

Label the diagram

Where would the oldest fossils be found?

Where would the newest/youngest fossils be found?

a

b

NEWEST/YOUNGEST FOSSILS

OLDEST FOSSILS

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TRUE OR FALSE

If a scientist found a shark jawbone when digging in the desert, it is proof that the environment in that desert has greatly changed (over millions of years). The dry desert he is studying was was once under water.

• TRUE

• FALSE

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Can the fossil of a seashell be found in the side of a mountain?

Hint: Fossils can prove that the environment in a particular location has drastically changed over time.

• YES

• NO

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