NS

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Across
  1. 1. The part of a plant that grows underground
  2. 3. When a liquid turns into a solid
  3. 4. A tool used to separate solids from liquids
  4. 7. A large object that orbits a star
  5. 10. A mixture where one substance dissolves into another
  6. 11. What is needed to do work or cause change
  7. 12. When a solid mixes into a liquid and seems to disappear
  8. 14. The star at the center of our solar system
  9. 15. The organ that controls the body
  10. 19. A cell that carries messages in the body
  11. 24. When a liquid turns into a gas
  12. 25. A state of matter with no fixed shape or volume
  13. 27. Supports the plant and transports water
  14. 29. A combination of two or more substances
  15. 31. Organs used to breathe
  16. 33. When gas changes into a liquid
Down
  1. 2. A body part made up of different tissues
  2. 3. A force that slows things down when they rub together
  3. 5. A group of similar cells that work together
  4. 6. A material that attracts iron
  5. 8. The process plants use to make food using sunlight
  6. 9. A state of matter that flows and takes the shape of its container
  7. 13. The planet we live on
  8. 16. Stored energy that can be used later
  9. 17. A group of organs working together
  10. 18. The organ that pumps blood
  11. 20. A living thing that makes its own food
  12. 21. The type of energy something has when it's moving
  13. 22. Organ that helps digest food
  14. 23. The process of a solid turning into a liquid
  15. 25. A force that pulls objects toward Earth
  16. 26. A small part of a plant that can grow into a new one
  17. 28. Earth's natural satellite
  18. 30. The part of a plant where photosynthesis happens
  19. 32. A state of matter with a fixed shape and volume