Saturday, July 31, 2010

Kitchen = Lab

Kitchen = Lab in this house.
In more than one way.

Yesterday we played with our breakfast. Then moved on to a little fun in the form of a science experiment. We made silly putty, sorta.

You will need:

White glue
Borax(1 tablespoon)
Warm water(1/2 cup)
Measuring cup

Mix your 1/2 cup of warm water and tablespoon of Borax together. Mix, mix, mix, until the Borax has dissolved.

Squeeze in some glue! However much you want.

This is what you'll get. The glue will become rubbery and touchable right away.

Whaaa la, silly putty.

We put blue food coloring in this one. That makes the project a tad bit messy. Hands got a little blue.

Why this works:
"Polymers are made out of long strands of molecules like spaghetti. If the long molecules slide past each other easily, then the substance acts like a liquid because the molecules flow. If the molecules stick together at a few places along the strand, then the substance behaves like a rubbery solid called an elastomer. Borax is the compound that is responsible for hooking the glue’s molecules together to form the putty-like material."
I'm am not responsible for that scientific talk. If you search the web you will find more info on this experiment, why it works, and some variations using different ingredients.

My thoughts:
This was fun for myself and the kids. Cheap and entertaining for a little bit. The putty isn't like the kind you buy in the store. It's not as stretchy and easy to mold as the real deal. Cool, just the same though. Give it a try.

Have fun!

No comments: