Coin and Water Drops

Materials Needed:

• coins (quarter, nickels or pennies)

• eye dropper

• water

• paper towel

Directions:

• How many drops of water will a coin hold before the water runs over the edge?

  • Place a paper towel on the table

  • fill an eye dropper with water

  • hold the coin with the fingertips of your other hand

  • add drops of water, one at a time, keeping count of the drops until the water rolls of the coin

Modifications:

• to decrease difficulty, place the coin on the table

• stability: arm resting on the table, or arm in space

• pinky and ring finger to be curled into palm