Across
- 1. Symbol Ca, helps build strong bones and teeth
- 3. This element, with symbol H, is the lightest and part of water
- 5. Symbol Fe, used to make strong buildings and tools
- 8. Symbol Na, found in table salt with chlorine
- 9. Symbol Ag, a precious metal used in coins and mirrors
Down
- 2. Found in diamonds and coal, essential for all life
- 3. This gas fills balloons because it is lighter than air
- 4. Most of the air around us is made of this gas (symbol N)
- 6. We breathe this element to survive (symbol O)
- 7. Shiny yellow metal used in jewellery (symbol Au)