Across
- 5. form from the cooling and solidification of lava or magma
- 9. The outermost layer; this is the layer what we step on it
- 12. includes solar, water, wind
- 17. emit greenhouse gases
- 18. sphere that covers all the water on Earth
- 21. means Earth
- 23. the innermost layer of the Earth
- 24. rocks are subjected to high intense
- 25. means water
- 27. it would appear flat because inflation stretches any initial curvature
- 28. the branch of science concerned with the investigation and measurement of spectra produced when matter interacts with or emits electromagnetic
- 29. uses the heat trapped in the Earth's core
Down
- 1. the layer of the Earth with Fudge like consistency
- 2. produces radioactive waste
- 3. theory that states there may be an infinite number of universes
- 4. one of the scientists who proposed the steady state theory
- 6. the point where the universe started
- 7. The most popular theory of the universe
- 8. the set of all life forms on Earth
- 10. black combustible rock made upof elemental C,H,O,N and varying amounts of S
- 11. rocks include sandstone, limestone, and shale
- 13. the layer includes crust, mantle, inner core and outer core
- 14. naturally occurring liquid composed of complex hydrocarbons
- 15. one of the scientists who proposed the oscillating theory
- 16. means life
- 19. educated guess
- 20. in the thin gaseous layer that involves the lithosphere
- 22. a gravitationally-bound system of stars, stellar remnants, interstellar gas and dust, and dark matter
- 26. a galaxy that is close to the Milky Way