Students will be able to explain that cooling water can change it to ice and ... makes the molecules move slower. Students see a video of water freezing and then melting. Students warm butter until it ...

When salt and ice are added to an empty aluminum can and mixed together, the can becomes very cold, and frost begins to form on the outside of it very quickly. As water freezes, the attractions the ...

A new form of ice ... molecules as it passed through them, tracking their rotation and speed before bouncing off into a detector. This let the scientists carefully observe the particulars of the ...