Across
- 4. a thin glass tube used in the lab
- 9. CO2
- 10. they can be really toxic so watch out for their fumes!
- 11. the force on an object due to gravity
- 13. HNO3
- 16. water, wind or solar energy are...
- 18. your phone battery runs on it
- 20. the curved surface of a liquid in a container
Down
- 1. they protect your eyes in the lab
- 2. lemon, vinegar and black coffee are...
- 3. the lightest element in the universe
- 5. you carry it out in a lab
- 6. use them to protect your hands
- 7. don't forget it to protect your clothes
- 8. longitudinal or transverse
- 12. an extremely small piece of matter with a negative electrical charge
- 14. wood, coal, petrol and gas are some examples of it
- 15. a synonym for dangerous
- 17. bleach and soapy water are...
- 19. never sniff them!