Bill Nye

Rocks Rock Harder

Rocks are formed in many different ways
I want to talk about them, if that's OK
Made by pressure, heat, and water
We rock hard, but rocks rock harder

Igneous rocks form inside the ground
Made when melted rocks cool down
Lava, pumice, great big granite
Are hard rocks sitting on this planet

Made by pressure, heat, and water
We rock hard, but rocks rock harder

Heat and pressure get their kicks
Making rocks called metamorphic
Goes down deep inside the Earth
A hot, hot place to have your birth

Sedimentary rocks are made from dust
Like sandstone colored grey and rust
Wind and water break 'em down
Cut big canyons in the ground

Made from pressure, heat, and water
We rock hard, but rocks rock harder
But rocks rock harder
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