Facts About Gravity for Kids
Facts About Gravity for Kids Gravity is one of the four fundamental forces of nature, without which the universe would be unrecognizable. Gravity is the weakest of these four forces, but it is important to life on Earth and the structure of the universe. Everything that has matter generates gravity, from a grain of sand to the largest objects in the universe. That gravity pulls things together. Size Matters When it comes to gravity, the larger an object is, the stronger its force. A person creates gravity but not enough to pull objects toward him or cause things to go into orbit around him. On the other hand, a planet has enough gravity to pull objects into orbit around it. A star makes enough gravity that it can pull whole solar systems into its orbit, like ours. Our sun's gravity is so strong that it keeps an object -- Pluto -- that is roughly 3.7 billion miles away in orbit. Gravity Keeps the Moon in Place The Moon is in orbit around Earth. That means that it circles Earth wit...