• Question: Why are some planets made of rock and iron and others made of gas?

    Asked by 565gdge33 to Jimi, Hayley, Chris on 16 Mar 2016.
    • Photo: Jimi Wills

      Jimi Wills answered on 16 Mar 2016:

      Well, there is gas around our planet too… basically all the planets are made of mixtures of things. Whether they are gas or liquid or solid depends on the things they are made of and the temperature they are.

    • Photo: Chris Conselice

      Chris Conselice answered on 16 Mar 2016:

      actually, the cores of the gas giants, jupiter, saturn, etc. have a rocky iron core. The inner planets probably had outer gas as well but it was blown away by the Sun.

    • Photo: Hayley Moulding

      Hayley Moulding answered on 17 Mar 2016:

      All planets are made up of lots and lots of different things! Sometime some planets are made of different things from others. The Earth is different to Mars and Mars is different to Neptune!!!

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