How do astronauts know how to live and work in a weightless environment? It doesn't come naturally! Junior physicists conduct experiments to examine the link between buoyancy and microgravity. Each activity illustrates a different aspect...

Create an edible class model of a landfill using pudding, graham crackers, cookies, and licorice. After making the landfill model, the class discusses what each part represents and answers some other landfill-related questions. Then they...