Across
- 1. the weight of a atom
- 3. in milk
- 8. sub atomic particle with no charge
- 10. in blood
- 12. what jewelry is made from
- 13. crystals found in water
- 16. what we breath
- 17. more than one element
Down
- 1. Tightly packed atom
- 2. salty
- 3. what some cars are made from
- 4. what pennies are made from
- 5. what we drink
- 6. a building block of matter
- 7. bananas
- 9. element with one proton
- 11. a negatively charged subatomic particle that can be either bound to an atom or free
- 14. outer shell of an atom
- 15. a positively charged atom
- 18. what we drink from cows