Hydroponics in Space – Crossword Puzzle

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Across
  1. 2. How water moves in a hydroponic system
  2. 3. Dusty, nutrient-poor soil found on the Moon and Mars.
  3. 6. Environment with almost no gravity, like on the ISS.
  4. 9. A small plant-growing habitat for astronauts.
  5. 10. What scientists adjust to help plants grow—red or blue
  6. 11. Special lights used in space farms to control plant growth.
Down
  1. 1. Process plants use to turn light into energy.
  2. 4. The part of a plant that absorbs water and nutrients.
  3. 5. Essential minerals plants absorb to grow
  4. 7. A closed area where plants grow in space
  5. 8. The overall increase in plant height or health