Price: $5.99
Level: Suggested for Grades 5 - 7

Why Does Some Soap Float While Others Sink?
You can clean up as you find the answer to this question. This project uses a comparative study to demonstrate a scientific principle.

Materials Needed:

• 4 bars of different soap brands (one should be Ivory)
• bowl of water deep enough for the soap to float or sink
• microwavable plate
• microwave oven
• oven gloves
• an adult to assist