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Carbon Cycle

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Across
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This type of electron is involved in bonding of chemicals.
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This type of reaction generates heat
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The process where plants make their own food.
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In the engineering process, you need to start with a _____.
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A large molecule containing carbon, hydrogen, and oxygen
Down
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It is considered a carbon sink because carbon dioxide dissolves into it so easily.
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One of the products of photosynthesis.
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The part of the atom found outside the nucleus.
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The process where animals use oxygen and release carbon dioxide into the atmosphere
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We burn this in cars and factories for energy but it releases a lot of carbon dioxide.
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The part of the atom that has a positive charge.
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If I have 7 atoms of oxygen in the reactants, I would have ___ atoms of oxygen in the products.