"Biology Clearance"

Soft iron is a classic example of a readily magnetized material.

Teaching tool for evolution and speciation, and DNA and protein synthesis.

AC/DC power supply with overload protection.

Designed for use with general purpose oscilloscopes.

Bulk connector strip to expand your TeacherGeek collection

Ceramic Ring Magnets have a high resistance to demagnetization and don't need a keeper.

Intricately detailed, this model identifies 200 hand-numbered anatomical features.

These springs are an oversized demonstration of Hooke's Law.

Snap together beads.

Ward's® PURE Preserved Specimens - the best dissection experience from start to finish.

Add color to your aquarium, while adding cover and security for your fish with these simulated aquatic plants. Artificial plants are low maintenance and can be easily cleaned. Plants vary from 4 to 9 inches in height and include a base to securely anchor in the tanks gravel.

Demonstrate Principles of the First Commercially Produced Steam Engine.

Learn Cell Structure With Hands-On Foam Pieces

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Keep aquarium water at the proper temperature with these high-quality heater units. Simply attach the heater to the aquarium wall and use the direct-reading thermometer-type scale to make adjustments.

Polytrichum sp. Haircap moss. A widely studied example of a typical moss, with leafy, upright growth habit that shows alternation of generations. Appearance may vary, depending on season; it may show antheridia, archegonia, or sporophyte. It is supplied in a plastic bag with care instructions. Size: 3" x 4".

Economy Color-Coded Spring Scales