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Soil, Rocks, Minerals, & Fossils
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The layer of soil that contains humus and where plants grow?
Topsoil
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The remains of a living thing that has died and was quickly buried is a ________.
Fossil
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Name this part of the soil.
Topsoil
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Understanding the ______ of minerals helps people know how to use them.
Properties
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Scientists classify rocks by how _______ they are.
Hard
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Erosion is caused by wind and _________.
flowing water
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What is made up of broken rock, air spaces, water, & humus
Soil
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Minerals that are hard to find are ________ minerals.
Precious
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Rocks are made of one or more______.
Minerals
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The movement of rocks and soil
Erosion
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Rock that forms when melted rock cools
Igneous Rock
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Table salt is a _________ mineral.
Common
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How to identify a mineral are: crystal shape, color, streak, and _______?
Hardness
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Breaking down rocks into smaller pieces.
Weathering
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When living things have died and decayed they become_________.
Humus
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