Across
- 2. Water vapor turning back into liquid to form clouds
- 3. Dropping off of sediments in a new location
- 6. Gas produced by plants that animals need to breathe
- 8. Animal that only eats other animals
- 11. Layer of gases surrounding Earth
- 12. Stored energy based on position or condition
- 13. Layers of rock used to study Earth's history
- 14. Type of rock that often contains fossils
- 17. Animal that only eats plants
- 19. Microscopic organisms, some of which decompose organic material
- 21. Force that pulls objects toward Earth
- 22. An organism, like a plant, that makes its own food
- 25. Cold-blooded vertebrate that lives part of its life in water and part on land
- 26. The theory explaining the movement of Earth's plates
- 28. An organism that eats other organisms for energy
- 30. Breaking down of rocks into smaller pieces
- 33. A series of events that repeat in the same order
- 34. Preserved remains or traces of ancient living things
Down
- 1. Resource that cannot be easily replaced in a short time
- 4. Water that falls to Earth from clouds as rain, snow, sleet, or hail
- 5. A warm-blooded animal with fur or hair that usually gives live birth
- 7. The process of moving rocks and soil by wind, water, or ice
- 9. Sudden shaking of the ground caused by plate movement
- 10. Animal that eats both plants and animals
- 15. The ability to do work or cause change
- 16. Organism that breaks down dead plants and animals
- 18. Type of resource that can be replaced naturally over time
- 20. A mountain that erupts with lava, ash, and gas
- 23. Process plants use to make food using sunlight
- 24. Type of energy an object has due to its motion
- 27. Chemical element cycled through air, plants, animals, and fossil fuels
- 29. Cold-blooded animal with scales that lays eggs
- 31. Process where liquid water changes into water vapor
- 32. Scientist who studies rocks and Earth's structure