Across
- 3. This element is used to clean pool and bleaching.
- 5. This element has 6 neutrons.
- 9. What element is used for water processing?
- 11. Humans breathe this element in their everyday lives
- 12. Used for foils,kitchen utensils and aeroplane parts.
- 13. Used to advertise signs.
- 16. Can be used to inflate balloons.
- 17. This element is also known as salt.
- 18. This element is an odorless gas, used in light bulbs.
Down
- 1. Which of the elements are used to make your teeth white?
- 2. Which element is used for organic materials for oils?
- 4. This element is a need for many body functions.
- 5. This element has an atomic number of four.
- 6. What element helps your muscles to contract.
- 7. This element is used for fertilizers.
- 8. It is a mood establishing element used to make medicines for mental illnesses.
- 10. This element has 20 protons.
- 14. How many neutrons does hydrogen have?
- 15. You can use this element for thermal installation.