Do molecules attract?

All matter is made up of molecules. 

Here's a simple activity to observe if molecules attract.

Materials

• water
• container for water (paper cup, etc.)
• waxed paper
• dropper
• pencil

Directions

• Use the dropper to place a few drops of water on a piece of waxed paper.
• Review the meaning of attract (to pull together).
• Have students predict if the water molecules will attract each other.
• Use a pencil to push 2 drops of water together. Do this slowly.
• Observe how the water drops pull together to form one drop.
• This attraction of molecules is what holds matter together.