US$ 79.90
and tentacle structure for invertebrate teaching
and Newton's-third-law experiments
and aluminum — sized to equal volume and drilled for suspension in calorimetry experiments
with polystyrene spheres
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$ 79.90
US$ 149.95
US$ 92.00
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US$ 200.00
US$ 38.00
US$ 134.95