Science

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Across
  1. 2. this is the product when anything reacts with oxygen
  2. 5. these are made up of only one type of atom
  3. 7. these have more than one element but are not chemically bonded
  4. 10. in carbon dioxide how many oxygen atoms are there
  5. 11. these are made up of protons, neutrons and electrons
  6. 13. this is the word that states we don't have enough of something
Down
  1. 1. the first part of the digestive system
  2. 3. these help breakdown food for digestion
  3. 4. this has taken place if there is a colour change, bubbles of heat given out
  4. 6. this is a diet that has all the necessary nutrients
  5. 8. this is where most of the nutrients are absorbed
  6. 9. this is a disease that you get from not enough Vitamin C
  7. 12. this food group helps food pass through our body