Across
- 3. it's also known as a falling star
- 8. our star
- 10. quantity of matter
- 13. An instrument for measuring and indicating temperature.
- 15. as you get older you have less and less...
- 16. The name of the planet where we live.
- 17. The phase transition from solid to gas.
- 18. It is the subatomic particle that hasn't any charge
- 19. It is the energy of movement.
- 20. It is the subatomic particle that has got a positive charge
Down
- 1. It is the state of matter that can be found at extremely high temperatures
- 2. The phase transition from gas to solid.
- 4. (8,4) Opposite of number 1
- 5. Mass over volume
- 6. (4,6)A baby "planet".
- 7. Mass, volume and energy are properties of...?
- 9. (7,7)If it is not nuclear fusion it's...
- 11. (7,6) you should know...hehe
- 12. There is only one in our solar system.
- 14. it is a body that orbits around a planet, it can be artificial or natural.