Fossils and How They Form
In this unit, you will learn how fossils form. You will be looking at pictures of fossils to see what they can tell about the type of living thing a fossil used to be and the type of habitat or ecosystem it lived in.
Key Ideas
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Fossils represent plants and animals that lived long ago.
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There is a relationship between fossils of organisms and the habitats in which they live.
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Fossilized plants and animals can be used as evidence that some habitats look very different now than they did a long time ago.
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Some fossils have modern counterparts.
Fossils that do not have modern counterparts are from organisms that are now extinct.
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Watch the video below to understand how we can figure out what fossil animals look like.
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| 1) __________ represent plants and animals that lived long ago. |
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| Correct! |
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| 2) Fossilized plants and animals can be used as evidence that some habitats look very different now than they did a long time ago. |
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| Incorrect |
| This is true. |
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3) Introduction
Read page 41 before answering the questions below.
Fossils provide _______ about dinosaurs and other living things from the past.
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| Correct! |
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| 4) Evidence is information that supports ___________. |
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| Incorrect |
| (A) is not correct
9/20 - B is correct. |
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| 5) Fossils provide clues about what an organism ate. |
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| Incorrect |
| This is true. |
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6) Bones Become Fossils
Read page 42 before answering the questions below.
What are the most common kinds of fossils come from?
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| Correct! |
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| 7) Animals from long ago that had shells lived in or near water habitats. |
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| Incorrect |
| This is true. |
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| 8) When the animals died, their soft bodies decomposed.
The hard shells remained. |
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| Correct! |
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| 10) What if these fossil shells were found high on a mountain?
What might this tell us about how ancient habitats have changed? |
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Your answer is too long. |
| Correct! |
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11) Plants Become Fossils
Read page 44 before answering the following questions.
Scientists can learn a lot from plant fossils. These fossils are evidence of what habitats were there a long time ago.
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| Correct! |
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| 12) What kinds of habitats do pine trees live in today? |
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| Correct! |
| Where do pine trees live? (B) is not correct. |
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13) Permafrost Can Preserve Soft Body Parts
Read page 45 before answering the questions below.
What can preserve soft body parts?
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| Correct! |
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| 14) When something is _______, it is kept in its original form. |
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| Correct! |
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| 15) Permafrost fossils help _______ know what a woolly mammoth looked like when it was alive. |
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| Correct! |
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| 16) The hard parts of an organism decompose first.
Then the soft parts are fossilized. |
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| Incorrect |
| This is false. |
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| 17) How does an entire living thing become a fossil? |
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| Correct! |
| (C) is not totally correct. Water is not the key. |
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| 18) The most common permafrost fossils are woolly mammoths. |
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| Correct! |
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19) Amber Can Preserve Organisms
Read page 46 before answering the questions below.
Some living things from the past are preserved in _______; it forms from a sticky material that comes from trees.
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| Correct! |
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| 20) Living things preserved in amber are broken into many parts. |
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| Correct! |
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| 21) If you were directed by your school to complete Offline Activities for this course, please enter the information on the Log Entry form. |
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| No offline activities found |
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