What IS a polymer?
A polymer is a natural or synthetic compound with
repeating small molecules.
What's so special about it?
This polymer acts as both a solid & a liquid.
Mix two simple ingredients together to make hours of
messy slimy fun.
In a large plastic bowl:
half a box of cornstarch
water - add little by little until a nice consistency
We stirred with our hands.
How will you know when to stop adding water?
When you run your hand through it slowly it should act as
a thick liquid. When you tap the surface quickly, it should
act as a rubbery solid. See video.
This is MESSY. I recommend doing this outside where
any mess can be cleaned with a hose.
|"Why was the broom late?
Because it overswept."
We made this on a hot summer day. When it dries out, it can
be revived (even a day later) by adding water, little by little.