This self-contained unit has a virtually unbreakable thermoplastic tray measuring 26" W x 66" L x 6" D. Two separate, independently controllable streams flow from the control panel. Water depth in “lake” is automatically cont..

Includes 30 A-10 compasses and one 20 cm instructional compass packaged in a plastic case. Compasses made of clear, scratch-resistant acrylic, features snap-lock lanyard, and is ergonomically designed to fit into the palm of the hand for eas..

Eight separate landform models form a single, 3 ft. x 3 ft., tri-dimensional model of mountains, lakes, rivers, deserts, glaciers, coastlines, canyons, and cultural points of interest. A lesson plan provides a glossary keyed to features on the model..

Students at all levels can visualize the causes and forces that shape the earth’s surface. Over 20 activities and projects demonstrate volcanic action, faulting, and folding. Consists of a demonstration tray, three pieces of flexible foam, three s..

Demonstrates basic components and principles of an actual seismograph used to study earthquakes by recording vibrations on a moving strip of paper. Size 12" x 6" x 5".

An accurate relief model featuring a view of Earth’s interior and atmosphere in the same scale. Mounted on a cradle base, the 12" dia. plastic globe can be opened to show a colorful cutaway view of Earth’s crust, mantle, and inner and ou..

Colorful 9" x 15" prints show dynamic forces and natural processes that form the earth and create the physical environment which influences man. The 12 large, durable prints cover volcanoes, folded mountains, fault mountains, coastlines, alluvia..

Sturdy plastic tray is large enough for group study or individual investigations. A special trough can be used for relating the rate of erosion to slope and stream volume. Includes a 48" x 14" x 3" heavy plastic tray with drain; outlet assem..

This 32 page workbook features over 20 investigations.

Eight separate landform models form a single, 3 ft. x 3 ft., tri-dimensional model of mountains, lakes, rivers, deserts, glaciers, coastlines, canyons, and cultural points of interest for field trip excursions conducted in the classroom via audio ta..