Science Crossword Puzzle

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Across
  1. 1. a typical star that is the source of light and heat for the plants in the solar system
  2. 2. the green pigment found in plant cells, essential to photosynthesis
  3. 3. plastid containing chlorophyll and other pigments in plants that carry out photosynthesis
  4. 7. a process used by plants and other organism to convert light energy
Down
  1. 1. the rays of the sun
  2. 2. a heavy, colorless, odorless gas
  3. 4. energy energy that you can actually see directly
  4. 5. a sweat crystalline substance found in plants: your body uses to store energy
  5. 6. plants, something that produce their own food
  6. 8. colorless and odorless gas that people need to breath