Across
- 2. two molecules in water
- 4. contains protons, nuetrons, and protons
- 9. study of the properties
- 12. made of C,H and O
- 14. a type of bond that holds water molecules
- 16. atoms
- 17. negatively charged particle
- 19. the amount of energy needed to start a chemical reaction
- 20. built out of monomers and covalent bonds
Down
- 1. measurements of hydrogen ions
- 3. made of C,H,O,N, and P
- 5. Biology teacher
- 6. Positively charged particle
- 7. Eukaryotes
- 8. study of living things
- 10. the backbone of all the compounds
- 11. the end result of chemical reaction
- 13. react together to form products
- 15. Nuetrally charged particle
- 18. biological catalystes