TANK62, CROSSWORD

2. a proposed answer to a question about the natural world
3. a group of atoms joined together in a particular way
4. a type of energy storage molecule made of many glucose molecules connected together
6. a category of large molecules that perform important functions inside living things
9. information about the natural world that is used to support or go against (refute) a claim
12. system: the body system that transports molecules to and from all cells of the body
13. the process of making clear how your evidence supports your claim
15. reaction: a process in which atoms rearrange to form new substances
17. system: the body system that takes in oxygen and releases carbon dioxide
20. a molecule that organisms can use to release energy, and that is made of carbon, hydrogen,

1. that are the building blocks of proteins
5. system:the body system that takes in food and breaks it down
7. argument: a claim supported by evidence
8. respiration:the chemical reaction between oxygen and glucose that releases energy into cells
10. the body’s use of molecules for energy and growth
11. a molecule that organisms get from the air or water around them and use to release energy
14. dioxide: a molecule made of carbon and oxygen atoms
16. ability to make things move or change
18. set of interacting parts forming a complex whole
19. oxygen atoms