answer this please. brainliest to the most appropriate answer.

Answer:
Below
Explanation:
1. Contact
2. Separate
3. Move
4. Collide
5. Temperature
6. Liquids
7. Solids
8. Dense
9. Rises
10. Space
11. Rise
12. Sink
13. Rise
14. Sink
15. Current
16. Energy
17. Sun's
18. Fire