e

12345678910111213141516171819
Across
  1. 3. -in-between stratosphere and Thermosphere
  2. 5. -this front has both triangles and semicircles
  3. 7. -Brings in oxygen, takes out carbon dioxide (hint:______ system)
  4. 13. -"powerhouse" of a/the cell
  5. 15. -liquid to gas
  6. 16. -this front has triangles
  7. 17. -feathery-like clouds
  8. 18. -this front has a semicircle (half a circle)
  9. 19. -puffy clouds
Down
  1. 1. - the outer layer (atmosphere)
  2. 2. -Breaks down food, Absorbs these nutrients into the body (hint:______ system)
  3. 4. -flat layer (normally) covers the sky
  4. 6. -the (cell) division of body cells
  5. 8. -a group of organs
  6. 9. -cell division produces reproductive cell
  7. 10. -Passing of traits
  8. 11. -(single-cell organism) lives in pond water
  9. 12. -lowest layer (atmosphere)
  10. 14. -hairlike projections used for locomotion (the ability to move)
  11. 17. -surrounds the cell membrane