McREL International
Mc Rel: Whelmer #33 Learning Activity: Density Balloon
A simple activity that investigates the effect of heat on the volume of a gas. The activity is presented in lesson plan format that meets NSES standards.
McREL International
Mc Rel: Whelmer #31 Activity: Static Charged 2x4s
A simple activity that investigates the basic principles behind static electricity. The activity is in lesson plan format that meets NSES standards.