Group 5 The Gas Giant Planets

Gas Giant Planets are planets that don't consist of rock or a solid material. There are four gas planets in our system; Jupiter, Saturn, Uranus and Neptune.
Saturn and Jupiter are mostly made out of helium and hydrogen (with heavier masses making up three and thirteen percent of the mass).

4_gas_giant_planets_size_comparison.jpg
Here are the four gas planets in our sloar system (to scale).

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