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Do-it-yourself "goofy Putty" By Steven Spangler

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CATEGORY CUISINE TAG YIELD
Household 1 Batch

INGREDIENTS

Elmer's White Glue, Do NOT
substitute
1 T Borax
Food Coloring
1 c Water
Empty plastic soda bottle
with cap
Zipper-lock bag, quart size

INSTRUCTIONS

Making The Borax Water:  Borax is a type of powder soap that is
available in most grocery stores.  Add 1 tablespoon Borax powder to 1
cup of Water. Stir until most of the powder dissolves.  Store the
Borax Water in a jar or bottle, and label the container "BORAX &  WATER
MIXTURE". Remember that one cup of Borax water will make many  batches
of "Goofy Putty".  Preparing The Glue:  Measure 1 tablespoon of Elmer's
Glue into a  zipper-lock bag.  Add 1 teaspoon of plain water to the bag
and mix.  The additional water makes the glue flow better.  Add a drop
of food  coloring to spice up the experiment.  Making Goofy Putty:  Add
1 tablespoon of Borax Water to the bag of  watered-down glue.  Seal the
bag and squeeze for 2 minutes in order to  thoroughly mix the liquids.
Notice that the liquids are starting to  form a putty-like substance.
Remove the putty from the bag and  continue to squeeze.  Try to explain
how and why the glue changed.  How Does It Work:  The mixture of
Elmer's Glue with Borax and water  produces a putty-like material
called a polymer.  In simplest terms, a  polymer is a long chain of
molecules.  As a model for these chains of  molecules, picture in your
mind strands of cooked spaghetti.  If the  polymer chains slide past
each other easily, then the substance acts  like a liquid because the
molecules flow.  If the molecules hook  together at a few places along
the strand, then the substance behaves  like a rubbery solid called an
elastomer.  Borax is the chemical that  is responsible for hooking the
glue's molecules together to form the  putty-like material.  There are
several different methods for making this putty-like  material. Some
recipes call for liquid starch instead of Borax Soap.  Either way, when
you make "Goofy Putty" you are learning about some  of the fun an
unusual properties of polymers.  SAFETY PRECAUTIONS WITH CHEMICALS
Although these substances are not  considered hazardous, you should
treat all chemicals with care and  wash your hands after handling.  Do
not taste or eat any of the  materials described in these activities.
Do not pour any of these  experiments down the sink.  Do not allow any
GOOFY PUTTY to remain on  clothing, upholstery, wood surfaces, or
carpet. These substances may  stain and damage the surface.  Clean up
any spill immediately.  Source: Mad Scientist 1995 Girl Scout Day Camp
Posted to MM-Recipes Digest V4 #098 by BobbieB1@aol.com on Apr 8, 1997

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Nutrition (calculated from recipe ingredients)
----------------------------------------------
Calories: 26
Calories From Fat: 9
Total Fat: 1g
Cholesterol: <1mg
Sodium: 295.4mg
Potassium: 99.4mg
Carbohydrates: <1g
Fiber: <1g
Sugar: <1g
Protein: 3.6g


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