A <em>gas giant</em> is a plant that is large in size and is mainly made up of hydrogen and helium and hence, the name.
They are also known as failed stars as their composition is the same as that of stars.
They have a very small rocky core.
<em>Jupiter, Saturn, Uranus and Neptune are the four gas giants</em> that are present in our solar system as they have the characteristics described above.
The force that holds the gases in the sun. The force that causes a ball you throw in the air to come down again. The force that causes a car to coast downhill even when you aren't stepping on the gas. The force that causes a glass you drop to fall to the floor.
