Fossils from the Past

Define endangered.

• Many animals are living

• one kind of organism has very few of its kind left on earth

• No more animals left.

Define extinct.

• No more of an organism's kind left behind

• Many animals left behind

• Millions of animals left behind

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1.       How do scientists learn about extinct animals? 

• A.   They learn by looking at bones and other animal things left behind

• B. They learn by planting plants

• C. They learn by petting sea creatures

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4.   Which animal were alive most recently?

• A.      Saber toothed tigers

• B.      Mammoth

• C.       Dinosaurs

5.   Why are orangutans endangered?

• A.       People water plants

• B.      People cut down trees

• C.       People grow taller trees

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6.     What are fossils?

• A.      The trace of remains that lived long ago

• B.      Rocks and soil

• C.       Minerals

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Define skeleton.

• A.      The flesh

• B. The bones that support the body

• C. The meat that supports the body

The fossil record shows that the kinds of things living on Earth have

_______.

• A. changed over time

• B. changed rapidly

• changed in the past

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Scientist learns about Earth's past by _____.

• A. studying rocks

• B. studying grass

• C. studying fossils

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______ found on land most likely mean the land used to be covered with water.

• Cat fossils

• Dog fossils

• Fish fossils

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