Is this some kind of terrible attempt at a gotcha question?When...

  1. 685 Posts.
    Is this some kind of terrible attempt at a gotcha question?

    When a material is heated, the increase in energy causes the atoms and molecules to move more and to take up more space— that is, to expand.

    Mystery solved. Maybe spend more time reading some science books and less time reading Russian troll farm disinformation.
 
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