Across
- 1. anything that has mass and takes up space
- 4. smallest known substances
- 5. a group of bonded atoms
- 6. area within an atom that contains the protons and neutrons
- 8. physical combination of substance that DO NOT change (M and Ms mixed with skittles)
- 9. name given to a substance that cannot be Broken into other substances
Down
- 1. the amount of matter an item has
- 2. chemical combination whereby the substances lose their original identity (water on steel makes rust)
- 3. a measurement of the space an item fills or takes up
- 7. particles items found in the atom including protons,electrons,neutrons, and quarks