Across
- 2. have the smallest charge
- 5. a scientific guess
- 6. a light bulb needs this to work
- 7. a group of atoms bonded together
- 10. a person that studies science
Down
- 1. studies chemistry
- 3. a plants home
- 4. connected to DNA
- 8. we breathe it
- 9. dinosaur have these and people have found them