Earth Cross Section
Constructive, Destructive and Conservative Boundaries (labelled)
Constructive, Destructive and Conservative Boundaries (unlabelled)
Rock Cycle (labelled)
Rock Cycle (unlabelled)
This ordinary looking rock, found in northern Canada in 2008, is the oldest ever found on Earth.
It contains minerals dating back over 4 billion years.
Most rocks on Earth are a lot younger.
Because Earth's natural processes are constantly breaking down existing rocks and creating new ones.
This is the rock cycle.
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