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SAcience
| Question | Answer |
|---|---|
| A natural resource that is made up of small bits of broken rock, air spaces, water, and humus is | soil |
| The layer of soil that contains humus and is where plants grow is the | top soil |
| The movement of rocks and soil is called | erosion |
| The remains of living things that have died and decayed become | humus |
| The breaking down of rock into smaller pieces is called | weathering |
| Rocks are made of one or more | minerals |
| The remains of a living thing that has died and was buried quickly is a | fossil |
| Gems are minerals that are hard to find They are called | precious minerals |
| Table salt is a mineral that is easy to find. It is called a | common mineral |
| ROck that form when melted rock cools is | igneous rock |
| Some properties that can be used to identify a mineral are crystal shape, color, streak, and | hardness. |