Across
- 1. On Earth, every 1kg of mass is pulled towards earth by a force of ..... n
- 5. Our sun is a ....
- 6. Mass is the amount of ...... an object has
- 7. How many planets does the solar system have?
- 10. What is mass measured in?
- 12. The force created when two objects rub against each other
- 13. This planet has the strongest gravity in our solar system
Down
- 2. What is weight measured in?
- 3. Complex life needs liquid ...... to survive
- 4. What is air friction also known as?
- 8. Instrument used to look at other stars and planets
- 9. Two forces of equal size going in opposite directions are...?
- 11. What force pulls objects down towards Earth?