Name: __________________________________________

Prediction
I will be able to put ______ drops of water on the coin.

Directions
Slowly begin to place drops of water on the coin, add the drops one drop at a time for better results. Count the drops, until the water drop collapses, and spills over the side on the coin. Record the number of drops below. Allow the other team to repeat the activity. Report your team's data to the class.

Number of Drops:
Team Member One: __________ Team Member Two: _________

Prediction
I will be able to float ______ paperclips on the surface of the water.

Directions
Attempt to place a paperclip on the surface of the water in the cup. (Hint: Place the paperclip on the prongs of the fork, and gently lower onto the water.)

Place as many paperclips as possible onto the surface of the water. Record the number of paperclips. Allow your teammate repeat the activity. Report your team’s data to the class.

Number of Paperclips:
Team Member One: __________ Team Member Two: _________

• Did the number of drops change with the size of the coin? "heads" versus "tails" ? new coin versus older (more used and worn down) coin? Why?
  
   
• Why do you think the paperclips "float"?