Across
- 2. wet
- 5. sodium and lead
- 6. hard
- 10. absorbs energy
- 12. small
- 13. clouds
- 14. sand and soil
- 15. affected by gravity
Down
- 1. rubber band
- 3. ionization
- 4. will change the appearance but not the compostion
- 7. measure the amount of space
- 8. always changing
- 9. releases energy
- 11. mass and volume