I showed the kids two toys that had been frozen in ice and asked them to brainstorm ways we could get them out. Responses ranged from putting it in the microwave (that would work quickly!) to leaving it outside in the sun.
I asked them to hypothesize what would happen if we put salt on one of the ice cubes. We tested our hypothesis.
It was a lot of fun to watch the ice turn to slush and even more exciting when the dinosaur's (on the green plate) head peaked through while the other dinosaur was still completely covered with ice!
It is hard to tell from this picture, but the green plate is so full of melted water it is about to overflow while the pink plate only has a small puddle of water.
This created a great opportunity to talk to the kids about how temperature changes the various states of water (gas, liquid, solid) c and how salt lowers the temperature at which water freezes, causing the ice to melt.
The kids really got a kick out of this "Magic Melting" trick and the fun Cold Ice can be!