Across
- 2. What you put in balloons?
- 3. It's a planet?
- 6. What we use to breathe?
- 7. What you put in a pool?
- 8. You get frostbite from just touching it?
Down
- 1. It's in a pencil?
- 2. its position as the first and lightest element?
- 4. It's in milk?
- 5. It's 5 cents in money?