Across
- 4. what is this formula s=d/t
- 6. scientist who believed all continents were together
- 8. evidence of a chemical change
- 9. break down of rock
- 11. where is electrons located
- 13. outermost layer
- 14. smallest part of an element
- 15. speeding up or slowing down
- 17. plates that have continents on top of them
- 19. speed plus direction
Down
- 1. plates that have oceans on top of them
- 2. when plates move away from each other
- 3. when plates crash into each other
- 5. a physical change in a substance
- 7. number of each element is the same
- 9. can be bent or hammered into a sheet
- 10. electrons charge
- 12. elements or compounds before a chemical change
- 16. plates slide past each other
- 18. where are protons located