If your kids can't resist slimy, sticky, messy stuff, they are absolutely going to love flubber. Also known as Silly Putty, flubber is a slimy, malleable substance that will entertain your kids for hours. Plus, it is the ultimate at-home kitchen science experiment.
In addition to being great fun, flubber also has some interesting science behind it.
In technical terms, a polymer is a large molecule composed of repeating structural units. These sub-units are connected by covalent chemical bonds.
In flubber, the Borax starts out as a solid and then combines with the glue and water to create a colloid polymer. Borax hooks the glue's polymer molecules together to form a putty-like material. As a result, flubber has properties of both a liquid and a solid.
Flubber can stretch without breaking, but you can also easily tear a piece of it off. You can squeeze flubber through your fingers, but it will also bounce like a rubber ball. Flubber will keep its shape if you hit it with a hammer, but you can gently press your hands into it and leave an impression.
Challenge your kids to think of new ways to put flubber to the test!