Welcome, Science Detective!
Something strange happened in Mr. C's laboratory.
A scientist poured a small amount of water into an empty aluminum soda can and heated it until steam appeared.
Next, the scientist quickly turned the can upside down into a container of cold water.
CRUNCH!
The can collapsed! No one touched or squeezed it.
Your mission: investigate the evidence, test your theories, and discover what caused the can to collapse.
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