Simple Machines Screw Model Foodsafe and strings for equilibrium and

and strings for equilibrium and vector experiments

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

Free-standing plant cell model displays greatly magnified organelle detail for student-directed rotation and inspection in cell biology coursework

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

Simple Machines Screw Model Foodsafe and strings for equilibrium andSquare 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.