A place for everything, and everything in its place

1234567891011121314151617181920
Across
  1. 3. An explanation of why or how something happens
  2. 5. Plates/ Move over the Earth's surface
  3. 8. Measure of mass in a given volume
  4. 10. variable/ The one you change or introduce in an experiment
  5. 11. When heat travels through fluids
  6. 12. When heat travels by two solids touching
  7. 13. variable/ The one that responds or depends on what you changed
  8. 16. When heat travels in rays or waves
  9. 19. Core/ Solid ball of metal in the Earth
  10. 20. The first scientist who proposed that plates move slowly over time on Earth's surface
Down
  1. 1. Outermost layer of Earth
  2. 2. group/ Under normal conditions in an experiment
  3. 4. Name of a landmass that existed 200 million years ago
  4. 6. current/ The flow that transfer heat in a liquid
  5. 7. An educated guess
  6. 9. Drift/ A rejected theory about how plates move on Earth
  7. 14. Amount of force pushing down on an area
  8. 15. Thickest and solid but hot layer of Earth
  9. 17. Core/ Liquid nikel and iron layer
  10. 18. A statement about how the same thing will happen everytime in a certain set of conditions