How to Make Hot Ice That Magically Freezes at Room Temperature

Here’s a simple experiment you can try at home that produces a unique substance called sodium acetate from baking soda and vinegar. It’s also often referred to as “hot ice” because at room temperature it forms crystals just like ice does—but without the need for a freezer.

It’s arguably a more fascinating experiment than the traditional miniature volcano, unless you don’t have the patience to work through all the necessary steps.

[YouTube via Likecool]