Meter Stick Optical Bench Kit with Double Concave and Convex Lenses Entomology & Zoology_Zoology Charts & Models large-amplitude waves that students can

large-amplitude waves that students can resolve when oscillating the spring by hand for transverse-wave studies

5 inches apart

Aspirator bottle with outlet for tubing

Onion epidermal cell model exposes the single-cell-thick tissue layer with rectangular cell walls

this 8-piece polypropylene graduated cylinder set spans 10mL to 2000mL with raised graduations for classroom and lab work

Meter Stick Optical Bench Kit with Double Concave and Convex Lenses Entomology & Zoology_Zoology Charts & Models large-amplitude waves that students canMeter stick optical bench with a hardwood rule, two lens holders, point source, candle mount, index card screen, and a matched pair of convex and concave lenses for image formation exercises.