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Brain in a Bag
For each Brain you will Need. 
1 gallon Ziplock baggie
2 cups sand
2 cups instant potato flakes
1½ - 1¾ cups hot water
Directions
Mix the dry ingredients together until they are well blended.
Make a well (indentation) in the center of the sand-potato mixture.
Add 1½ cups of water.
Seal the bag and mix the sand-potato mixture and water with a kneading motion.
The mixture should be the consistency of damp sand. When it has reached the proper consistency, it will hold together and you will be able to form it into a ball.
If the mixture is too dry, add more hot water, a little bit at a time. Mix well after each water addition.
When the mixture holds together, open the baggie and remove all the air. Be careful, it is kind of stinky!
Reseal the bag.
Turn the bag over. The sealed edge will become the bottom of the brain.
Now shape the mixture so that it looks like a brain.
The Ziplock bag becomes the cerebral cortex.
When finished, the brain in a bag will be about the size of an adult brain and will be about the same weight as an adult brain.
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Learning Consortium
Bellevue, WA 98006
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Copyright 2008: Learning Consortium.org: All Rights Reserved
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