Across
- 3. this is when the tectonic plates slide past each other
- 6. another term for the mantle
- 7. the current that causes the tectonic plates to move
- 11. this is when the tectonic plates collide
- 13. layer that is solid iron and nickle
- 15. the number of scientific variables
Down
- 1. the variable that the scientist manipulates
- 2. is made of molten rock
- 4. these are the plates that float on the mantle
- 5. layer of the earth that is made of silicon and aluminum
- 8. layer that is liquid iron and nickle
- 9. this is the variable that stays constant
- 10. this variable is the data the scientist collects
- 12. this is when tectonic plates divide
- 14. the core is the _______ of our planet