Asteroids are small, rocky objects that orbit the sun.Asteroids are left over from the formation of our solar system. Our solar system began about 4.6 billion years ago when a big cloud of gas and dust collapsed.
- Asteroids aren’t all round like planets. They have jagged and irregular shapes.
- Most asteroids are made of different kinds of rocks, but some have clays or metals, such as nickel and iron.
- They are sometimes called minor planets but they are much, much smaller than the planets or moons.