Across
- 2. How much space an object or substance takes up
- 4. Energy caried by light waves
- 7. A force that opposes motion
- 9. A distance something travels in a certain amount of time
Down
- 1. Matter composed of atoms tightly packed together
- 3. How much mass takes up a certain space, measured in grams/milliliters
- 5. The basic building block of matter
- 6. Matter loosely packed together
- 7. A push or a pull
- 8. Matter composed of atoms very loosely packed together