Young geologists piece together the puzzle of plate tectonics in an earth science lesson. Given a physical map of the world, they search for land formations that indicate the location of different types of plate boundaries.

Students examine the impact of pollution. In this pollution lesson, students watch Protecting Our Planet, then participate in a simulation of the effect of pollution on a variety of organisms.

Fifth graders use common household items to build landforms and simulate weathering and erosion.

Students apply what they recall about objects in motion by animati ng sequences of pictures that model a set of physical conditions. They animate the orbital motions of the Earth, the space shuttle, and the Moon based on calculations of...