Slime STAR PDF Print E-mail
Written by Administrator   
Monday, 01 June 2009

Active Image Active ImageMr. Taranto was slimed by twenty one students and a couple of teachers last Friday in honor of perfect attendance for STAR Testing.  Since everyone loved the slime so much, we are sharing the Wildcat slime recipe with you so you can have fun at home.  The ingredients are very simple: white glue, water, and borax. Just make sure you follow the directions. Even the PTA parents think they can make shortcuts, and we made a huge batch of a mistake.  If you add the glue to the water mix directly, you get a really firm gel, not slime!

The slime recipe we used is from About.com

 

What You Need:

  • 1 teaspoon borax powder
  • 12 ounces water, divided
  • 4 ounces (120 ml) glue (e.g., Elmer's white glue)
  • teaspoon
  • bowl
  • jar or measuring cup
  • food coloring (optional)
  • measuring cup

Directions:

  1. Pour the glue into the jar. If you have a big bottle of glue, you want 4 oz or 1/2 cup of glue.
  2. Fill the empty glue bottle with water and stir it into the glue (or add 1/2 cup of water).
  3. If desired, add food coloring. Otherwise, the slime will be an opaque white.
  4. In a separate, mix one cup (240 ml) of water into the bowl and add 1 teaspoon (5 ml) of borax powder.
  5. Slowly stir the glue mixture into the bowl of borax solution.
  6. Place the slime that forms into your hands and knead until it feels dry. (Don't worry about the excess water remaining in the bowl.)
  7. The more the slime is played with, the firmer and less sticky it will become.
  8. Have fun!
  9. Store your slime in a seal bag in the fridge (otherwise it will develop mold).

Tips:

  1. Use white glue, such as Elmer's brand. Most 'school glues' do not have the correct composition.
  2. Don't eat the slime - it isn't especially toxic, but not good for you either!
  3. Slime cleans up pretty easily. Remove dried slime after soaking with water.

Explanation (science content!):

The borax is acting as the crosslinking agent or "connector" for the glue (polyvinyl acetate) molecules. Once the glue molecules join together to form even larger molecules called polymers, you get a thickened gel very similar to slime.
 
Last year the PTA recipe used 4 gallons of glue, 12 gallons of water, and 2 2/3 cups (128 teaspoons) borax. This year after using up the first four gallons of glue, we had to throw that batch out and start over. The batch we made came from two gallons of glue, 1 1/3 cups of borax and a few ounces of red food coloring!  We also added gummy worms for the extra gross out factor.  You can make your own color mix, just add the color to the glue mix to make sure the slime takes the color.
 
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