#6 - Making Goop
experiments must be done in the presence of a parent or teacher.
this activity you will mix white craft glue and a borax solution
together to produce a surprising new material: GOOP! Often when
two substances are combined the properties of the substances change.
physical or chemical reaction is taking place when this happens.
White craft glue is a type of polymer called
polyvinyl acetate. When the borax solution is added to the glue,
the molecules of the borax bind up the glue "strands"
so that the glue no longer flows freely. The properties of this
new substance are unlike the original glue or borax solution. The
"goop" behaves in an unusual way; it has some characteristics
of a liquid and some characteristics of a solid. Goop may remind
you of a well known commercial product called Silly Putty.
activity will also provide the students an opportunity to create
a chemical compound in a slow, gradual, and methodical way in order
to determine a "preferred" mix.
large molecules made up of many smaller molecules or monomers. These
are arranged in a strand-like fashion.
tablespoon of white craft glue
stick (for stirring)
& 1/2 teaspoons of borax
materials -paper towels, warm water, detergent
sheet of plastic wrap or zipper top plastic bag (to store goop)
1 tablespoon of white glue into first paper cup. Add 1 tablespoon
of water and stir with stick until mixed. Set aside.
a second paper cup, mix 1 & 1/2 teaspoons of borax and 4 tablespoons
of water. Stir well, then before borax settles to the bottom,
use a tablespoon to scoop out ONLY one spoonful of the water and
Pour into the cup that has the glue and water mixture.
with stick. If mixture doesn't quickly form a gel, add
another tablespoonful of the borax mixture and stir again.
gel from cup and roll in your hands until substance firms up
it's ready to play with!
save your goop, wrap it in plastic wrap or place it in a zipper
plastic bag. Wash your hands thoroughly after you put your
will keep accurate track of the amount of glue they use, as well the
borax added to the solution to create their final "preferred"
What is a polymer?
How are they arranged?
What happens when we combine the borax with the glue?
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