Term
What term means: no longer found as a living thing? |
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Definition
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Term
| What are the remains or traces of a once-living organism? |
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Definition
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Term
| Where are insect fossils often found? |
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Definition
| in amber (hardened tree sap) |
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Term
| Where are animal and plant fossils often found? |
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Definition
in sedimentary rock (sed/im/en/tary) |
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Term
| What is sedimentary rock? |
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Definition
made of layers of clay, soil, sand, and other earth material usually forms in water
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Term
| How do bones or shells become fossils? |
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Definition
animal living in water dies soft body parts decay bones/shells get covered with sediments great pressures presses sediments together sediments change to rock
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Term
| What are 2 types of fossils found in rocks? |
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Definition
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Term
| How is a fossil mold formed? |
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Definition
organism is buried by sediments sediments change to rock organism decays and leaves a cavity (opening) in the rock = a mold
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Term
| How is a fossil cast formed? |
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Definition
after a mold is formed, it fills with sand or mud sand or mud hardens = a cast
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