Across
- 2. A gas that needs to be present to sustain human life
- 4. This planet has the strongest gravity pull in our solar system
- 6. The second closest planet to our sun
- 8. An attractive force which pulls objects together
- 10. The name of the rover currently exploring Mars
Down
- 1. As you move away from the centre of the Earth the stength of gravity becomes...
- 3. This is the unit for mass
- 5. This is the unit for weight
- 7. This planet has a ring of asteroids around it
- 9. The stenght of gravity on Earth is BLANK N/kg