Unit 2: Lesson 1-5 Crossword

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Across
  1. 1. carbohydrates, proteins and fats
  2. 5. Small green structures inside of plant cells that respond to light and where a chemical reaction occurs.
  3. 7. pores on the leaves that allow gases to go in and out
  4. 8. Wall, rigid outer layer of the plant cell
  5. 9. H2O
  6. 10. amount of water vapor in the air
  7. 11. made up of nitrogen, methane, oxygen, carbon dioxide, water vapor
  8. 13. Humans breathe this out, plants take this in
  9. 14. the things we say are going into the plant
Down
  1. 2. the things we say are exiting the plant
  2. 3. a plant growing system that only requires water with nutrients
  3. 4. the basic unit of all plants
  4. 5. When atoms that make up substances get rearranged to make new substances, with new properties
  5. 6. energy from the sun
  6. 12. composed of vitamins and minerals; in the ground