FW:

1. Moons orbit planets but the planets orbits the sun.
2. No some planters have more than one moon for example, Jupiter has 66 moons.
3. Yes they do because if you go there you will be able to stand on it.
4. Jupiter has the biggest gravitational field ok 26N/kg which is 2.6 more than earth's gravitational field.
5. Mercury and Mars both have a gravitational field of 4N/kg.
6. The smaller the planet the weaker the gravitational field strength.
7. Mercury has the smallest time of orbit which takes 3 months.
8. The planet with the longest orbit is Neptune and it takes 1978 months to orbit the sun.
9.The further away the planet the longer it takes of the planet to orbit the sun.
10. The closer the planet is to the sun the hotter it is, except for venus being hotter than mercury because mercury does not have a atmosphere.
11. There are four inner and outer planet, the four inner planters are small and rocky, the outer planets are large and glacius and far from the sun.
12. A comet has two tails. They are made out of dust and ice.
13. The orbits of the asteroids are highly elliptical and the orbits of the comets are circular.
14. Pluto is no longer a planet.