U8 Vocab 8th

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Across
  1. 4. a decrease or reduction
  2. 7. the amount of water in the air
  3. 8. in a straight line
  4. 11. an idea not based on physical things
  5. 15. the study of shapes and space
  6. 16. the leaves of plants and trees
  7. 17. cutting down many trees
  8. 18. the top layer of trees in a forest
Down
  1. 1. sizes or amounts of something
  2. 2. a group of similar living things
  3. 3. a forest with a lot of rain and many plants and animals
  4. 5. the visible features of an area (land, hills, etc.)
  5. 6. to use something in a harmful or unfair way
  6. 9. water that falls from the sky (rain, snow, etc.)
  7. 10. not changed or affected by people
  8. 12. supplying water to plants or crops
  9. 13. useful materials like water, trees, or minerals
  10. 14. different levels or parts on top of each other