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Ages 12 and up. This kit is an engaging introduction..
Grade 5 and up. With this kit students learn about ..
Designed especially for classroom demonstration of h..
Essential for precision sampling of all types of soi..
Safe for classroom use. Consists of one each of alph..
Demonstration radiometer spins up to 2,900 rpm from ..
Soil testing in 3 easy steps. Just mix soil with wat..
Features 10 to 12 hands-on activities that focus on ..
Ideal for measuring salt content of sea water, aquar..
RMI, Inc. An inexpensive set for separating soils an..
Easy to read 1" dial with a durable polycarbonate le..
This easy-to-assemble, lightweight kit uses a solar ..
Harness the power of the sun! A powerful solar cell ..
Place this disk in sunlight and watch it rotate with..
Study strategies to heat a home with sunlight and in..