Across
- 5. The smallest particle that makes up matter
- 9. A burning splint makes a pop in this gas
- 13. Use to test for carbon dioxide
- 14. Uses electricity to decompose matter
- 17. A variable that is not changed
- 18. A substance at the start of a reaction
- 19. Gases that are un-reactive
- 20. To break down a substance
Down
- 1. Produced by two different elements bonding
- 2. Smallest piece of a compound
- 3. A property that tells mass/volume
- 4. Atoms do this to form a molecule
- 6. Anything with mass and volume
- 7. The study of matter and its changes
- 8. Found on the periodic table
- 10. This type of reaction makes new substances
- 11. Made in a chemical reaction
- 12. Causes a glowing splint to relight
- 14. A shorthand way of describing a chemical change
- 15. A light gas that does not burn
- 16. A compound formed when oxygen joins an element