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