Science Crossword

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Across
  1. 2. What gas to plants give off?
  2. 3. Red planet
  3. 6. The process where a seed falls into the cracks of a rock and breaks the foundation of that rock.
  4. 7. Force that pulls objects to Earth
  5. 8. Outermost layer found in only plant cells.
  6. 9. What is the outler layer of the Earth's surface called?
  7. 10. When a gas forms into a liquid
  8. 12. Largest organ in the human body.
  9. 13. The powerhouse of the cell
  10. 15. Found only in plant cells, helps with photosynthesis.
  11. 16. The bottom part of the microscope providing suppor
  12. 18. Holds all the DNA and instructions for the cell.
Down
  1. 1. Process where plants make food.
  2. 3. Used to show something that is either too big or too small to see.
  3. 4. When water falls from the sky in the form of rain sleet hail or snow
  4. 5. When liquid turns to gas
  5. 11. When the moon and sun line up, blocking our view of the sun
  6. 14. Dioxide, What gas do plants take in?
  7. 17. closest star to Earth