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Science - chapter 1, lesson 1

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Across
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A green chemical in plant cells that allows plants to use the sun's energy to make food
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Any of a number of organized or specialized structures withing a living cell
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Are oval, membrane covered organelles that supply energy for the cell
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A group of similar cells that work together at the same job
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Many celled organism
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A group of organs that work together to do a certain job
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the center of an atom that has most of its mass
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One-celled organism
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Cells contain a gel-like liquid called cytoplasm
Down
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Is a membrane covered structure used for storage
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A group of tissues working together to do a certain job
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A layer around the outside of the cell
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Any living thing that can carry out its life on its own
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The smallest unit of living matter