Across
- 1. The supercontinent that existed 250 million years ago.
- 4. The city that Mr. B grew up near.
- 5. The sphere that contains the air.
- 6. The motion in the mantle that drives plate movement.
- 8. The sphere that contains the Earth's crust.
- 9. The largest ocean on Earth.
- 12. The process that happens in the bottom of the ocean.
- 15. The sphere that contains Earth's water.
- 17. The largest country in the world.
- 18. The sphere that contains all living things.
- 20. The continuing cycle of the Earth's crust being created and destroyed.
- 21. The second layer of the Earth
Down
- 2. Describes the shape of a planet's orbit.
- 3. The continent that Canada is on.
- 5. The founder of Continental Drift Theory.
- 7. The plate that China is on.
- 10. Due to Earth's rotation, this affects the direction of weather patterns and ocean currents.
- 11. The change in the orientation of the Earth's axis.
- 13. The term describing the angle of tilt of Earth's axis of rotation.
- 14. The most populated country in the world.
- 16. Water that moves in circular patterns in the ocean.
- 19. The number of continents on the Earth.