Science recap

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Across
  1. 7. what does the e in mrs Gren stand for?
  2. 8. light is a form of energy made of this
  3. 9. what shape does a circuit sound like?
  4. 10. how would you rate this crossword?
Down
  1. 1. what makes lights go on?
  2. 2. is plastic?
  3. 3. Our sense involving our ears
  4. 4. what is the start of the digestive system near the mouth?
  5. 5. what does the m in mrs Gren stand for?
  6. 6. what do we need to have nutrition?