US$ 128.00
Step-down transformer matched to a 35-watt sodium lamp on a 220V AC mains supply
Student pulley demonstration set with a range of pulleys for mechanical-advantage and force-multiplication comparisons
and chewing mechanisms in health coursework
Five-cylinder equal-mass set at 30g each in zinc
and accessories for combined friction and inclined-plane work
Large Earthworm Dissection Anatomical Model, 19 x 7 inch Light & Optics_Color Step-down transformer matched to aBuilt for invertebrate study, this large earthworm dissection model reveals segmentation, nephridia, and digestive tract for annelid anatomy teaching.
US$ 128.00
US$ 159.00