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Carbon Cycle

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