Across
- 3. carbon
- 6. everything
- 7. chemical property
- 8. Ketchup
- 9. physical property
- 10. Substances that cannot be decomposed into simpler substances through ordinary chemical processes
- 11. all the elements
- 12. a charge of negative electricity,
- 13. building block for matter
Down
- 1. introducing the atomic theory into
- 2. oxygen
- 4. iron
- 5. Atomic boom
- 7. created the lightbulb
- 9. the branch of science
- 11. hydrogen is in a bottle and u put a splint of fire in it