Across
- 2. Well-established explanation unifying observations
- 4. Light stretched as universe expands
- 7. Water flowing on surface without infiltration
- 9. Infinitely hot and dense point where universe began
- 15. Unifies all string theories using higher-dimensional branes
- 16. Lower mantle region under high pressure
- 17. All living organisms on Earth
- 20. Breaks along smooth flat planes
- 23. Breakdown of rocks into smaller sediments
- 26. Cool Pacific phase with stronger upwelling
- 28. Describes what happens in nature without explaining why
- 30. Turning sediments into rock
- 31. Present processes operated similarly in the past
- 32. Universe has no beginning or end and creates new matter
- 37. Ice, dust, and rock with a tail
- 38. Movement of sediments from one place to another
- 39. Particles like electrons that don’t feel strong force
- 40. Solid Earth including rocks and soil
- 42. Idea that life arrived from space
- 45. Gives mass to other particles
- 47. Oldest photosynthetic life evidence
- 48. Time difference between light emission and observation
- 50. Layer of gases around Earth
- 53. Medium-grained clastic rock
- 58. Glows under UV light
- 59. Rocky, dense, inner planets
- 60. Fine-grained extrusive igneous rock
Down
- 1. Large gaseous outer planets
- 3. Warm Pacific phase with reduced upwelling
- 5. Rapid early expansion that made the universe smooth
- 6. Mineral salt formed from evaporation
- 8. Educated guess that is testable
- 9. Very fine-grained clastic rock with thin layers
- 10. All water on Earth
- 11. Color of a mineral’s powder
- 12. Rounded gravel-sized clastic rock
- 13. Angular gravel-sized clastic rock
- 14. Rising of cold nutrient-rich water
- 15. Non-foliated rock formed from limestone
- 18. Says everything is made of tiny vibrating strings
- 19. Breaks irregularly with rough surfaces
- 21. Coarse-grained intrusive igneous rock
- 22. Squashing sediments together
- 24. Vesicular volcanic rock that can float
- 25. Common sulfate mineral
- 27. Common phosphate mineral
- 29. Banded foliated metamorphic rock
- 30. Crust plus upper mantle
- 33. Life forming from nonliving matter
- 34. Seasonal wind pattern
- 35. Change in wavelength caused by motion of source and observer
- 36. Fine foliated rock formed from shale
- 41. Scratch resistance of a mineral
- 43. Rocky metallic object in space
- 44. Building blocks of protons and neutrons
- 46. Region where liquid water can exist
- 49. Minerals gluing sediments together
- 51. Plastic layer allowing plates to move
- 52. Planet orbiting a star outside the solar system
- 54. Mountain-building process
- 55. Rotating cloud of gas that formed the solar system
- 56. Way a mineral reflects light
- 57. Cosmic microwave background radiation evidence of Big Bang