Across
- 2. a group of 2 or more atoms
- 5. amount of energy transferred
- 6. measurement of moving energy in a system
- 8. a substance unable to be broken down in smaller substances
- 10. a material made of a combination of atoms
- 11. a substance that speeds up chemical reactions
- 13. amount of space occupied by matter
- 15. everything with volume and mass
- 17. the process where reactants change into products
Down
- 1. result of a chemical reaction
- 3. a substance made by mixing chemicals
- 4. a type of science including changes & chemicals
- 7. interactions of a group of atoms into different species
- 9. beginning materials to change into a product
- 10. attraction of the same type of molecule
- 12. smallest unit of matter
- 14. sum of work and heat
- 16. measure of matter in an object