The activity sheet will serve as the Evaluate component of the 5-E lesson plan. Hold up a ball of clay about the size of a ping pong ball and ask students if they think it will sink or float in water.

it will float on the water. If a liquid that is more dense than water is added to the surface of the water, it will sink. Note: We are purposely using the terms “size” and “amount” instead of “volume” ...