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the imprint or remains of something that lived long ago.
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| What are the three types of fossils? |
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shallow prints or marks in solid rock – living things that pressed on the materials that later turned into rock
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an empty space in rock where something once was – water seeps in and breaks down the material and spaces are left that make it
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| a fossil made inside of a mold – minerals seep into the mold and the minerals harden and they form a copy of the mold |
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| Where are most fossils found? |
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Fossils are also found in it. It is hardened tree sap. When an insect gets trapped in tree sap, it may become an insect fossil.
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| How long does it take to create fossil fuel? |
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Means to change from a liquid to a gas - when water (liquid) turns into water vapor (gas)
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Means to change from gas to a liquid - when water vapor (gas) cools and changes to water droplets (liquid)
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| Water held in rocks and soil below the surface |
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| To use something wisely, not wastefully |
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| What is a natural resource? |
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| a material on Earth that is necessary or useful - such as water, air, and soil |
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| What is a renewable resource? |
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| a resource that can be replaced or used over and over again |
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| What is a nonrenewable resource? |
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a resource that cannot be reused or replace easily - once it runs out it is gone
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| When does pollution occur? |
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| when harmful materials get into water, air, or land. |
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| Examples of renewable resources are: |
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| Examples of nonrenewable resources are: |
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