Ifound that the earth travel anroud the sun once avery year and it spins anroud once every 24 hours.The Earth also spins on its own axis. The axis is an imaginary line through the centre of the Earth from the North Pole to the South Pole.The Earth is just one of the nine planets that travel anroud the Sun. The other planets are called Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune.Earth is a small, rocky planet which supports a variety of life. As far as we know, Earth is unique from all other planets in this respect.The Moon travels anroud the Earth , It goes round once every 28 days.We only see the part of the Moon that is lit by the Sun.The Moon takes about 27 days (27 days, 7 hours, 43 minutes, 11.6 seconds) to go all the way anroud the Earth and return to its starting position.Most rocks on the surface of the Moon seem to be between 4.6 and 3 billion years old.The Moon travels anroud Earth at a speed of 2,288 miles per hour (3,683 kilometers per hour).The Moon has no air because its gravity is too weak to hold an atmosphere. The Sun is a star and gives out heat and light.It is roughly spherical in shape and is much, much bigger than the Earth.The surface of the Sun is much cooler than its atmosphere.The Sun is by far the largest object in the Solar System.Because the Sun is so large compared to everything else, it is easily able to hold on to the rest of the matter, causing everything else to orbit anroud it.The Sun is a star it is not a planet. Our Sun is just like the stars we see in the night sky. The Sun is also the only star we see during the daytime.