Science Crossword

4. a type of energy storage molecule.
5. all the living and nonliving things interacting in a particular area.
6. Storage Molecule: a molecule that organisms can use to release the energy they need to survive.
7. the part of a cell where photosynthesis happens.
8. Dioxide: a molecule made of carbon and oxygen atoms.
10. a group of atoms joined together in a particular way.
13. Respiration: the chemical reaction between oxygen and glucose that releases energy into cells.
17. a type of atom (a tiny piece) that makes up molecules such as carbon dioxide and energy storage molecules.
19. a closed ecosystem made by humans.
20. the part of a cell where cellular respiration happens.
21. something that is required for a process.

1. living things, such as plants, animals, and bacteria.
2. a type of energy storage molecule.
3. an organism that gets energy storage molecules (such as glucose) by breaking down dead matter.
9. a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms.
11. to link two or more things.
12. an organism that needs to eat in order to get energy storage molecules (such as starch and fat).
14. Matter: matter that makes up the nonliving parts of an ecosystem, such as air, water, and rocks.
15. the tiny pieces that all matter—all the stuff in the world—are made of.
16. the ability to make things move or change.
18. Matter: matter that makes up the living and dead organisms in an ecosystem.