"live microorganism"

Demonstrate magnetic fields on your desk or overhead with this clear container of iron fillings. Using magnets, you can show students how the fillings move and cluster together.

Dramatically Demonstrate that Temperature Increases with Pressure

This fun, thought-provoking learning experience uses 9 museum-quality casts to teach students about diversity in diet in the animal kingdom. Casts include three from each group: herbivore (beaver, mountain gorilla, hippopotamus), carnivore (coyote, African lion, alligator), and omnivore (human, grizzly bear, baboon).

Construct Numerous Key Biochemicals with One Kit.

You can use these multi-colored dice for games, exercises in probability, basic operations, fractions, statistics, practicing and strengthening mental calculations, and more.

Common geological materials conveniently packaged for lab, classroom, or industrial use.

A thin aluminum coating produces great sensitivity to electrostatic charges. Styrofoam pith-like balls measure 8 mm in diameter and each has a silk suspension cord.

A set to demonstrate the rise in temperature when a fixed mass of gas is compressed.

Explore dendrochronology.

Build the basic molecules of life.

Pulley set to expand your TeacherGeek ideas.

This solid socket board holds light bulbs for circuit experiments.

Measure soil quality and learn about pollution.

Pith balls are an electrostatic necessity.

Economy Spinning & Casting Line

Clearly Observe Inner Workings