Fossil Review

What would it likely mean if a shark tooth fossil had been found in the Rocky Mountains?

• that the Rocky Mountain area used to be a dessert

• that the ocean used to be a dessert

• that the wind had blown the fossil into the mountains

• that the rocks in the mountains had once been under water

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Which of these describes how fossilized dinosaur footprints were made?

• A dinosaur died in a hot, dry area, and the heat turned the dinosaur's feet into rock.

• A dinosaur walked in fresh cement, and the footprints hardened permanently under the Sun.

• A dinosaur walked in muddy or soft ground, and the footprints were buried after they hardened.

• A dinosaur was buried in mud, and the footprints are the indentations the dinosaur left when it was dug up.

Which of the following parts of an animal is most likely to become a fossil?

• tooth

• skin

• lung

• heart

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Which of the following can we learn about by studying fossils?

• cars

• dinosaurs

• computers

• houses

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By studying fossils, we can learn more about

• organisms that may live millions of years in the future.

• the exact number of dinosaurs that existed.

• organisms that lived a long time ago.

• the type of food that modern humans eat.

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A bird dies and becomes buried in the mud on a beach. After millions of years, the bird may

• becomes a fossil

• turn into an insect

• become a plant

• come back to life

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Plants lived on Earth during prehistoric times. We know this because

• we can see them in photographs that were taken long ago.

• some of the plants were preserved as fossils.

• everything alive today has been alive since the beginning of time.

• stories about them have been passed down from parent to child.

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Woolly mammoths were large prehistoric animals that lived in very cold areas, known as tundras.If fossils of many woolly mammoths were found in an area that is now a warm desert, what is likely true of that area?

• The area has always been a warm desert.

• The area was home to all prehistoric animals.

• The area was once a large ocean.

• The area was once very cold.

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The fossil looks much like a modern day fish. Which of the following environments did this organism most likely live in?

• a hot, dry desert

• a cold, snowy mountain

• a body of water

• a tropical rainforest

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We can learn about extinct plants and animals by

• studying some of the extinct organisms still alive today.

• counting the number of organisms that are still living.

• measuring the distance between our sun and the next star.

• studying fossils made by the organisms.

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