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Across 2. "Sphere" of gases that surround the Earth 6. Smallest chunk of geologic time ex: Holocene 10. "Sphere"of the Earth with Life 11. Zero degrees longitude (2 Words) 13. Study of the ocean 15. Study of the atmosphere and weather 17. Prefix that means 1/100 18. Zero degrees latitude 19. The distance between contour lines (2 Words) 20. Epoch that humans have been dominant 21. Map primarily used to look at rock types and geologic hazards (2 Words) 23. Lines of equal elevation (2 Words) 26. The last supercontinent that came together in the Permian and broke up in the Triassic 28. Study of the universe 29. A contour line with the elevation stated (2 Words) 30. A best guess in the scientific method 32. Unit measure distance in the metric system 34. Lines that run parallel to each other and measure N & S of the Equator 36. Map primarily used to look at naturally occuring features (2 Words) 37. Most recent geologic era 38. Prefix that means 1000 39. Study of the Earth

Down 1. Where all of a sudden life shows up in the fossil record (2 Words) 3. Epoch the last ice age occured during 4. Unit measure of volume in the metric system 5. Map primarily used to look at the lay of the land/elevation (2 Words) 7. Means "Ancient Life" 8. "Sphere" of the Earth with water 9. What has happen in the past is happening today and will happen in the future; magnitude and frequency vary 12. 2000 degree silly putty 14. Map primarily used to look at man made boundaries such as states or counties (2 Words) 16. Largest Chunk of Geologic Time 22. Unit measure of mass in the metric system 24. Lines also called Meridians that run pole to pole and measure E & W of the Prime Meridian 25. The Jurassic is one of these types of chunks of geologic time 27. Ridged/rocky part of the Earth 31. 1:25000 on a map represents this 32. Age of the Dinosaurs 33. Hypothesis that is proven over and over again 35. Prefix that means 1/1000