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Determine the Diameter of Trunks by Measuring their Circumference

Wide Field of View Shows Many Cells Captured at Various Phases of Mitosis

Book & Downloadable Content Combo Reference

Up-Close view Without a Microscope

For use with the Serial Number and Restoration Kit, this set provides additional stamped serial number samples for multiple groups or repeat activities.

Students Use Reasoning Skills to Locate Hidden Natural Treasures

Model The Effects Of Antibiotics On Disease Causing Bacteria During Infection

Construct Numerous Key Biochemicals with One Kit.

Excellent Comparative Set For Forensic And Anthropological Studies

Demonstrate that a charge cannot exist inside a conductor and re-create Faraday’s classic 'Ice pail' experiment with this kit.

An economical digital stroboscope.

Students use the St. Louis Demo Motor to research fundamental principles of electric motors and generators.

Teach magnetism, motion, Newton's Laws, and more with this fun ball launcher. Simply align these powerful neodymium magnets on a linear rail and arrange steel balls in a sequence for a truly engaging lesson.

Observe phase reversal at the fixed end of wave pulses with this spring used to test waves in fundamental and multiple vibrations.

Study the motion and behavior of gas molecules with this intriguing demonstration. An electric motor, running at 4 to 12 V DC, vibrates a small platform inside a transparent tube. This platform then violently vibrates the many small stainless steel balls inside the tube.