Across
- 1. the amount of matter in an object
- 5. it is any push or pull
- 7. Large Rocky object that revolve around the sun
- 9. Material that allow heat to flow through it
Down
- 2. how fast an object is
- 3. Force that slows down a moving object
- 4. it is formed when the light is blocked
- 6. Material that doesn't allow light to pass through
- 8. It seems shiny but its not a source of light