US$ 36.50
and tentacle structure for invertebrate teaching
with polystyrene spheres
and Newton's-third-law experiments
the four-sided geometry letting students explore deviation through non-equilateral cross-sections
5 inches each supports crafting projects
3" (75mm) Magnifying Glass with Plastic Handle Pack Size_5 and tentacle structure for invertebrateThree inch (75mm) magnifying lens on a 6. 75 inch unbreakable plastic handle, sized for reading, close inspection, and image formation experiments in introductory optics.
US$ 36.50
US$ 31.20
US$ 199.99
US$ 149.99
US$ 120.00
US$ 64.00
US$ 129.99