Ecosystems 1

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Soil

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Covers the Earth's surface; made of tiny rocks and material from dead plants and animals.

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Nutrient

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A substance that living things need to grow and stay healthy.

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Fertilizer

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A material that contains nutrients to help plants grow.

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Organism

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Any living thing.

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Fungus

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A living thing that is a decomposer and has spores, such as mold or mushroom.

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Mushroom

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A type of fungus that usually has a stalk and cap.

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Mold

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A type of fungus that often decomposes food.

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Variable

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Something that you can change in an experiment in order to test an idea.

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Fair Test

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An experiment where only one thing is changed, and everything else stays the same.