This fun and interactive lesson will teach your students the scientific method to find out if something sinks or floats with a little help from Cookie Monster.

Sink or float? This simple lesson has students guess the densities of different objects and place them into water to test their predictions.

Let your students spread their wings with this lesson that teaches them about the life cycle of a butterfly. A fun song will get your class moving and a variety of different worksheets will suit any class.