Description

Five-cylinder equal-mass set at 30g each in zinc

Student pulley demonstration set with a range of pulleys for mechanical-advantage and force-multiplication comparisons

Step-down transformer matched to a 35-watt sodium lamp on a 220V AC mains supply

and chewing mechanisms in health coursework

Large Earthworm Dissection Anatomical Model, 19 x 7 inch Light & Optics_Color Five-cylinder equal-mass set at 30gBuilt for invertebrate study, this large earthworm dissection model reveals segmentation, nephridia, and digestive tract for annelid anatomy teaching.

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Large Earthworm Dissection Anatomical Model, 19 x 7 inch Light & Optics_Color Five-cylinder equal-mass set at 30g

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