Penny Cohesion Lab

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How Many Drops of Water can a Penny Hold?

Statement of the problem/purpose:
The purpose of this experiment is to see how many drops of water a penny can hold. The point of this experiment is to teach the class about cohesion. Cohesion is the molecular force between particles within a body or substance that acts to unite them. Cohesion is in easier terms the bubble on top of the water you are pouring or the skin. It is like overflow without spilling over the side.

Hypothesis:
My hypothesis is that the penny would not be able to very many drops of water do to such a small surface area. My estimate would be that the penny would hold about twenty drops of water.

Materials:
• Beaker
• Eye dropper
• A paper towel
• Water
• Penny

Procedure:

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