Simple Machines Screw Model Foodsafe securing a thermometer to any

securing a thermometer to any support rod at the angle needed for hands-free temperature monitoring during an experiment

this Brownlee-pattern apparatus gives a clean visual proof of the 2:1 stoichiometry of water decomposition

Fits smaller bench spaces at half scale while retaining numbered removable organs and an included key card for student identification exercises

Replacement drive belt matched to the companion hand-crank Van de Graaff generator

and cochlear detail for auditory teaching

Simple Machines Screw Model Foodsafe securing a thermometer to anySquare topped wooden screw simple machine model with a leverage block, letting students measure rotational distance against linear advance to derive the mechanical advantage of the spiral.