Term
| Rocks are made from _______________. |
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Definition
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Term
| How can you compare minerals? |
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Definition
| Look at color, texture, brightness, and streak. |
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Definition
| When you rub a mineral on something it leaves a mark called a streak. |
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Term
| What is an example of a rock made up of many different minerals? |
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Definition
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Term
| An example of a rock make up of only one type of mineral is ______________. |
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Definition
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Term
| Rocks and minerals are used to make many things such as: |
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Definition
| roads, bricks, cement, glass, jewelry, and electronic devices |
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Definition
| rocks formed when rocks are squeezed and heated |
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Definition
| rocks formed when pebbles, sand and mud pile up and become cemented together into a rock |
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Definition
| "fire made" rocks form when melted rock (magma/lava) cools and hardens |
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Term
| How does igneous rock become sedimentary rock? |
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Definition
| Igneous rock can be eroded by wind and rain and weather and broken into sand and pebbles which later become cemented together |
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Term
| How can igneous rock become metamorphic rock? |
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Definition
| It would have to be pressured and heated to make it change. |
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Term
| How would sedimentary rock or metamorphic rock become igneous rock? |
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Definition
| It is melted and then cooled. |
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Term
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Definition
| a mixture of small rocks, sand, minerals, and humus |
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Term
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Definition
| a material found in soil that was once living or was formed from living things |
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Definition
| the top layer of soil made of small dark particles and some humus |
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Term
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Definition
| the bottom layer in soil, below the subsoil |
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Term
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Definition
| layer of soil below the topsoil; made of larger particles and NOT humus |
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Term
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Definition
| a kind of soil with clay and sand; plants grow well in this soil |
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Definition
| an imprint or remains of something that lived a long time ago. |
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Term
| What are fossils good for? |
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Definition
| Teaching us about the Earth's past. |
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Term
| Where are most fossils found? |
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Definition
| sedimentary rocks where they become cemented in with other materials |
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Term
| Fossils may also be found in hardened tree sap called ___________. |
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Definition
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Term
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Definition
| a fossil that is a shallow print or mark in solid rock |
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Definition
| a fossil made inside a mold; minerals seep into the mold and harden to take the form of the mold |
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Term
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Definition
| fuel formed from the remains of plants and animals from long ago |
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Term
| Which of the follow is NOT a fossil fuel? Oil, coal, natural gas, granite |
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Definition
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Term
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Term
| Substances in nature that are NOT plants or animals are called __________. |
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Definition
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Term
| What are the three types of rocks? |
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Definition
| igneous, sedimentary, metamorphic |
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Term
| The cycle where rocks change from one type to another is called the _________. |
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Definition
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