Menu Project Science

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Across
  1. 5. subatomic particle with negative electrical charge
  2. 8. subatomic particle with positive electrical charge
  3. 9. plant reaction to gravity
  4. 10. reacts to particular substances.
  5. 11. made of one element or more
Down
  1. 1. small number under line shows atoms of elements
  2. 2. plant reaction to water
  3. 3. a substance that can not be created or destroyed chemically
  4. 4. plant reaction to light
  5. 6. subatomic particle neutral electrical charge
  6. 7. plant reaction to touch
  7. 10. number on the left of compund shows m olcule number