Candy puzzle

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Across
  1. 2. this is what makes up trees
  2. 5. your brothers run so
  3. 7. what do you carry to school? your back__
  4. 8. head blank body what fits in the blank?
Down
  1. 1. something hard found on the earth
  2. 3. what you look at to tell time
  3. 4. something that quacks
  4. 6. what do you have behind your body ... your