Across
- 2. Mercury, Venus, Earth and Mars
- 4. biggest planet
- 5. notreallyaplanet
- 8. jupiter, saturn, uranus, neptune
- 9. orbits around the sun
- 10. how much matter the object is made of
- 11. one of the most famous scientists to think about why objects fall
Down
- 1. force that pulls objects towards each other
- 3. the force of gravity acts between the objects in the universe in the same way everywhere
- 6. coldest planet
- 7. hottest planet
- 10. orbits around Earth
- 12. a measure of gravitational pull on an object