science crossword puzzle

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Across
  1. 2. the study of the earth is called
  2. 4. an instrument used to measure wind speed and direction
  3. 5. the ability of a substance to allow another substance to pass through it
  4. 8. deals with the study of water as it occurs on, over , under the earths surface
  5. 9. A chain of process that produces and transforms the rock type in earths crust
  6. 14. when the moon passes between the sun and earth
  7. 15. the measurements of distance north and south of the equator
  8. 16. when plates move towards each other and collide
  9. 18. a thin white cloud
  10. 19. the study of everything in the universe beyond Earth's atmosphere
  11. 20. where two plates move away from each other
Down
  1. 1. a way heat travels
  2. 3. the measure of how wet the air is
  3. 6. a natural process that results from accumulation of nutrients in lakes or other bodies of water
  4. 7. the lowest layer of the Earth's atmosphere
  5. 10. change - long-term shifts in temperatures and weather patterns
  6. 11. the structure of the earth is divided into 4 major components
  7. 12. A measure of spaces in a material, liquid go through it if it has porosity
  8. 13. occurs when the moon is on the same side of earth as the sun
  9. 17. how many plate boundaries are there