1
2
3
4
5
6
Across
- 3. A state of matter that spreads to fill any space
- 5. The speed of something in a given direction
- 6. A curved piece of glass that bends light
Down
- 1. Anything that takes up space and has weight
- 2. An educated guess about what will happen in an experiment
- 4. The upward force that makes things float in water