Energy

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Across
  1. 4. the energy in food that comes from the sun
  2. 6. the gas that plants breathe in
  3. 7. energy found on earth
  4. 8. the biggest natural source of energy
  5. 9. the activity that uses a lot of energy
  6. 10. the ability to move, change and work
Down
  1. 1. energy used when our food is digested
  2. 2. what we get our energy from
  3. 3. an activity that uses very little energy
  4. 5. the gas that plants breathe out