Get started!
Stage 1
Answer 4 questions correctly in a row.
Select the one substance that is not a rock.

Soap is made in a factory. It is a solid.

Calcarenite is formed in nature. It is a solid.

Basalt is a solid. It is formed in nature.
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Jumping to stage 1 of 1
Excellent!
Now entering the Challenge Zone—are you ready?
