We live on one of eight planets. The name of our planet is Earth. The other seven planets are (1..........) Mars, Mercury, Venus, Neptune, Uranus, Jupiter, and Saturn. The planets are like big balls of rock and metal that (2..........) go around the sun. The sun is not a planet but a very big star.
Jupiter is bigger (3..........) the other planets, with sixteen moons. Mercury is the smallest planet and the nearest planet to the sun. It does not have (4..........) moons. It is also very hot. Uranus is the coldest planet because it is very far from the sun.
Our planet Earth is (5..........) Venus and Mars, but they are far from us. Rockets take (6..........) very long time to go from one planet to another. Earth is the only planet (7..........) things grow, and people and animals live. Some people think that there are people (8..........) animals on some of the other planets. No one has ever (9...........) to the other planets. People (10..........) go to visit other planets in the future.