Across
- 5. correctly
- 7. what it's made of
- 8. substances combined
- 11. features/traits
- 15. + charge
- 16. new machines
- 17. study of substances
- 18. test/try
Down
- 1. across subjects
- 2. surroundings
- 3. repeated design
- 4. no charge
- 6. basic rules
- 8. atoms joined
- 9. evidence-based
- 10. pure substance
- 12. find out
- 13. smallest unit
- 14. has mass, takes space
- 15. force per area