Across
- 2. rock formed by cooling magma
- 4. heat transfer through direct contact
- 7. equipment that keeps accidents from happening
- 9. heat transfer from sun to Earth
- 10. unit for force
- 13. rock changed by heat and pressure
- 14. mass divided by volume
- 17. shiny, reflects light
- 18. type of force that doesn't move
- 19. shiny, malleable, conductive
- 21. type of change that makes a new substance
- 23. type of energy in batteries, food and fuel
- 25. made of only one kind of atom
Down
- 1. rock formed by compaction
- 3. two or more elements combined
- 5. type of force that moves
- 6. distance divided by time
- 7. stored energy
- 8. semiconductor
- 11. unit for mass
- 12. dull, brittle, insulator
- 15. equipment used after an accident has happened
- 16. heat transfer by rising and sinking of gas
- 20. energy of motion
- 22. molded or pounded into shape
- 24. color of mineral in powder form