GACK!
This is a recipe for making something sold under the name of GAK or GACK! in stores. It's lots of fun for kids, as it's a cross between putty and Jell-o. It can be easily formed into different shapes, but will quickly lose that shape and become a formless puddle once you stop manipulating it. Best of all, it's very inexpensive to make yourself.
Combine:
* 2 cups white glue (regular old Elmer's school glue)
* 1 and 1/2 cups water
* Food color of choice
Mix the above until it's not sticky.
Separately, dissolve:
* 1 teaspoon Borax (found in stores in the laundry section) in
* 1/2 cup of water
Add Borax solution to the glue solution. You will get a very thick clump of slime where the two mix. Now you must work in the rest of the solution. With clean hands, knead the Slime to get it to mix it well. This will take about ten minutes or so, and is not very difficult as the Slime easily separates between your fingers. If you desire a looser, more slimy texture, add a bit more water and knead it in. The more slimy this is, though, the more apt it is to get stuck in any fabric it comes in contact with. I recommend that children only be allowed to play with it on a table. If it gets stuck on any fabric, just soak it in water. In time, the Slime will simply dissolve. Have fun!
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Gack and other assorted gooey things you can make as experiential, "hands on learning tools."
These are related to the process of change and helping turn Caterpillars into Butterflies:
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Basic, Bombproof Gack
Take 2 cups Elmer's Glue mixed in 1.5 cups warm water with food coloring added "to taste!" and combine with a mixture of 1.5 tablespoon Borax mixed in 1 cup hot water.
from The Children's World Learning Center in Charlottesville VA (via Ted Forbes)
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Oobleck:
50 cc's of cornstarch (2 big tbls) and about 25 ml of water. Remove from cup and knead. Add few drops of water if oobleck is too crumbly.
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Glurch 1:
You'll need 45 ml liquid laundry starch, 25 ml white glue and a pinch of salt. Put starch into plastic medicine cup, add salt, stir, add glue and stir. Squeeze out excess starch with fingers. Remove from cup and knead. Add a few grains of salt if too runny.
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Glurch 2:
20ml Elmer's white glue mixed in 25ml water; add food coloring as desired, stir well. Stir while adding either enough 4% sodium borate solution (Borax) or liquid Sta-Pruf starch (the blue stuff is the only one that works) until the glurch forms. Pour off excess liquid, then dump glurch onto wax paper for a minute or two. Let students knead glurch and you have it. If the stuff is too sticky, too little borate/starch was used. Hot water dissolves the Borax better.
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PVA Slime
To a 4% solution of 25 ml of polyvinyl alcohol (PVA) add a couple of drops of food coloring, then 6-7 ml of saturated (about 4%) borax.
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Another fun recipe:
To about 25 ml of white glue (not all brands work equally well) add a drop or two of food coloring and then 12 ml of liquid laundry starch concentrate. After stirring and kneading, this makes something I have seen called "gloop", "oobleck" or "homemade silly putty".
ENJOY! God Bless You, ;-)
2007-07-03 20:46:09
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answer #1
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answered by Anonymous
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I always just heard gac as a kind of generic term for home made playdough type stuff. Here are a couple of recipes.
INGREDIENTS:
2 cups flour
1 cup salt
2 tablespoons alum
1 cup water
2 tablespoons oil
liquid food coloring
PREPARATION:
Pour dry ingredients into a large pan and stir together.
Stir oil and food coloring into the water in a separate bowl.
Pour the liquid ingredients into the dry ingredients while mixing.
When the dough becomes stiff enough, squeeze and knead the dough with your hands.
Add more flour if dough is sticky.
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This recipe will make a play dough that is firm and elastic and helps improve strength and fine motor skill.
INGREDIENTS:
2 cups baking soda
1 1/2 cups water
1 cup cornstarch
PREPARATION:
Mix all ingredients with a fork until smooth.
Boil over medium heat until mixture thickens.
Spoon mixture onto plate or wax paper and allow to cool before using.
Refrigerate for best freshness.
2007-06-30 16:44:39
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answer #2
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answered by Patti C 7
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2016-05-31 23:23:43
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answer #3
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answered by albertine 3
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