Terrestrial Planets

Terrestrial planets are planets, such as Mercury, Venus, Earth and Mars that are made up rocks and metals or hard surfaces. These are also the inner planets, closest to the sun. Terrestrial planets (Links to an external site.)

Jovian aka giant planets are planets that are made up of gases, and have no solid surface. These are the planets furthest from the sun, such as Jupiter, Saturn, Uranus and Neptune. Jupiter and Saturn are made up mostly of hydrogen and helium gas, while Uranus and Neptune are made of water, ammonia and methane. Jovian planets (Links to an external site.)

A dwarf planet is a object outside the Earth's atmosphere, that resembled a planet but lacks at least one of the 3 things that would classify it as a planet, such as,