Today in Science we did a experiment.
We used a can,element,ice cream tube full of cold water,scissor tong and a heat mat.
Hypothesis:I think that the can will crunch up.
What is expansion, what causes it to happen?
Expansion is when something increases in size.
Heat causes expansion.
What is contraction,What causes it to happen
Contraction is when something cools down and compacts together.
Contraction is caused when something is cooled down or cold.
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