Single Bench-Mount Pulley with Nylon Ball Bearing Biology_Health & Genetics Models Twenty-six-page biology ABCs coloring book

Twenty-six-page biology ABCs coloring book introduces biological concepts through alphabet-letter themed illustrations for classroom and homeschool use

Glass-jacketed twin-rod Gunther expansion apparatus with 0

Pack of 100 qualitative filter paper circles measures 21

equipping a class for compound-pulley and multi-rope mechanical-advantage experiments

Single Bench-Mount Pulley with Nylon Ball Bearing Biology_Health & Genetics Models Twenty-six-page biology ABCs coloring bookSingle pulley on a screw clamp bench mount accepting surfaces up to 27mm thick, paired with a nylon ball bearing wheel for smooth low friction operation in pulley experiments.