Mr. Wizard's World

Magnifying 25X, Pretzels, Electricity, Straw through Potato, Inertia and more (5x12)

Air date: Apr 17, 1989

Kellie briefly describes objects on the counter that they are going to examine under the microscope: plastic ruler, fingerprint, feather, some mud, and a flea. Magnifying 25X, Pretzels, Electricity, Straw through Potato, Inertia, and more.