Across
- 4. heating up material that rises, expands, cools, and sinks
- 6. earths outer layer, its crust
- 7. as you move toward the core the temperature
- 10. Pressure in the inner core of the earth has caused it to be this state of matter.
- 11. instrument used to detect small changes in earth's magnetic fields
- 12. Heat transfer by wave motion
- 13. supercontinent made from all the continents 250 million years ago
- 15. these plate boundaries move toward each other and create subduction zones
- 16. plate boundaries that move past each other and create faults such as the San Andreas fault line
- 18. The Hawaiian islands were formed by
- 20. used climate, fossil and rock data to support theory of continental drift
- 21. Aristotle is the father of _______.
Down
- 1. Increasing the temperature of a material will cause its density to ____.
- 2. a change in earth's magnetic field
- 3. this layer of earth is liquid and where Earth's magnetic field is generated
- 5. the amount of matter in an object
- 8. sound waves used to measure water depth
- 9. This scientist was known as the father of deductive reasoning
- 14. This part of the mantle is like putty, it is one reason for plate tectonics
- 16. This scientist discovered the Mid-Atlantic Ridge (last name)
- 17. over 60% of earth is this
- 19. True or False: Tectonic plates interact at plate BOUNDARIES