Ch.8 Fossils study guide
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Remains or traces of past life,often found in sedimentary rock. | fossil
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| The hollow space that is left when sediment hardens around the remains then dissolve. | Mold
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| A fossil formed when dissolved minerals fill a mold and hardens. | Cast
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| A fossil of an organism that lived in many places around the world for a short period of time,it can help scientists find the age of a rock layer. | Index fossil
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| Most fossils are found in which type of rock? | Sedimentary rock
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| When an organism leaves a footprint in the mud and the mud hardens into stone,this is what type of fossil? | Trace
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| In sedimentary rock,which layer is the oldest? | The bottom layer
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| An_____ ______ lived in many places for only a short amount of time. | index fossil
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| Which fossil method can preserve a whole animal? | Trapping in amber
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| A giant super continent is also known as what? | Pangea
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| A fossil of a fish is found in the desert, what does this give evidence of? | There must have been water in the desert.
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| Study of fossils. | Paleontology
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| True or false, some kinds of living things have not changed in millions of years? | True
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| What is the most likely body part of a shark to become a fossil? | Teeth
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| What did the ancestors of elephants and mammoths have in common? | The ancestors of elephants and mammoths did not have trunks or tusks.
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| A paleontologist finds a fossil of an unknown insect.How can the paleontologist classify the fossil? | Once a paleontologist finds an insect fossil,he will try to compare it to a modern insect of today.He will classify the fossil by telling if it is a cast or mold and where it lived.
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| Why is studing fossils of ancient animal important? | It is important because if we didn't study fossils,we would have no information of what past life might have been like.Example:what if a paleontologist found a fish fossil in a desert,he would predict that there was once water in deserts.
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