Plankton Collection Net with Vial Subcategory_Volumetric Flasks this Perspex acrylic rod gains

this Perspex acrylic rod gains a positive charge when rubbed with cloth

ten 4 by 3-inch plane glass mirrors at ~2

sized to deliver 6V at the high-current capacity of D cells for sustained electromagnet and motor demonstrations

Optically-worked glass double convex lens with a 200mm focal length and 1

mounted on a 4mm-terminal base that drops inline with other modular circuit-demonstration components

Plankton Collection Net with Vial Subcategory_Volumetric Flasks this Perspex acrylic rod gainsCollection net for aquatic plankton sampling, featuring fine mesh muslin netting, a swivel attachment, and collection vials for gathering microscopic organisms in the field.