Wanda's+Experiment

=Can the polymer CASEIN be used as glue?=

Materials:
 * measuring cup
 * glass
 * skim or low fat milk
 * white vinegar
 * spoon
 * paper towels

Procedure:
 * 1) Use the measuring cup and add 100ml (4 measuring cups) of skim or low fat milk to a glass.
 * 2) Add 25 ml (1 measuring cup) of white vinegar to the milk.
 * 3) Let the glass sit for 10 minutes and observe what happens.
 * 4) Use your pen to make notes, draw pictures as to what is happening in the glass.
 * 5) You should be seeing a layer of white "goop" floating to the top.
 * 6) Use a spoon to scoop out the curdled goop and place it in your measuring cup.
 * 7) Fill up your measuring cup with the white "goop."
 * 8) Now empty your measuring cup on a folded piece of paper towel and dry out the goop a bit.

The casein-based glue that you made was a kind of glue used by many years ago by the Egyptians to glue furniture together.

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