We Will rock You

Igneous rock is volcanic rock
It starts as liquid that’s in the earth
Sometimes it explodes and cools down fast
And forms obsidian that looks like glass

Chorus    We will, we will rock you
             We will, we will rock you

Metamorphic Rock is a rock that’s changed
By the earth’s pressure and its heat
Like the caves limestone from an old sea
Turned to marble when the earth’s plates heaved

Chorus

Sedimentary rock is compound rock
Made up of the other two
When they break down into smaller parts
Cemented together as If by glue

Chorus

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