Across
- 1. study of Earth's plate movements
- 3. elevated landform with peaks
- 6. sudden shaking of the ground
- 8. All living organisms on Earth.
- 10. Earth's outermost thin layer
- 12. Hypothesis of the solar system's formation through a close stellar encounter.
- 13. Earth's solid outer layer
- 18. All the water on Earth.
- 19. Study of weather and atmosphere.
- 20. community of living organisms interacting with their environment.
Down
- 2. long term weather patterns
- 4. Earth's solid parts like rocks
- 5. well-supported explanations based on confirmed facts from observation
- 7. Layer of gases surrounding Earth.
- 9. plants convert sunlight into energy
- 11. lowest later of atmosphere
- 14. manipulated variable
- 15. study of Earth's oceans
- 16. Earth's innermost layer
- 17. serves as the standard of comparison