Across
- 7. The slow process of breaking rocks down into smaller pieces
- 9. An "Effect" where gases trap heat, keeping Earth warm
- 10. Having many different types of species in one ecosystem
- 11. The invisible force that keeps planets in orbit around the Sun
- 12. The sum of all forces acting on an object
- 14. The ecosystem's recycler, like a mushroom or bacteria
- 16. A chemical reaction that feels hot because it releases energy
- 18. The green "solar panels" in plant cells that perform photosynthesis
- 19. Why a straw looks "broken" in a glass of water; the bending of light
- 20. The "letter" combination of alleles an organism carries
- 22. When one tectonic plate slides under another and sinks
- 24. The type of rock most likely to contain fossils
- 25. Stored energy, often "gravitational" when an object is high up
- 27. An object’s tendency to keep doing what it’s doing (thanks, Newton!)
- 28. An area of land where all water drains into a single body of water
- 29. The physical trait you actually see (like blue eyes)
- 30. A long-term relationship where at least one species benefits
Down
- 1. The height of a wave; in sound, this determines how loud it is
- 2. The energy an object has because it is in motion
- 3. An underground layer of rock or sand that stores groundwater
- 4. The "goldilocks" state; maintaining a stable internal environment
- 5. Calculated by dividing mass by volume
- 6. What you get when two or more atoms are chemically bonded together
- 8. The number of wave cycles that pass a point per second
- 13. The theory that Earth's outer shell is divided into moving plates
- 15. A random "typo" in a DNA sequence that can lead to new traits
- 17. The cell's power plant where cellular respiration happens
- 21. When one celestial body moves into the shadow of another
- 23. An energy source that doesn't run out, like wind or solar.
- 26. Survival of the fittest; the mechanism behind evolution