16.5" Inclined Plane Simple Machine Model Chemistry Miniature desktop torso with 12

Miniature desktop torso with 12 removable parts includes a dissectable head and brain for compact classroom anatomy and biology teaching

this plant cell model shows organelle ultrastructure and cell-wall layering for upper-level cell biology teaching

Four-metal 32mm density cube set with hooks in brass

a battery-free source of partial vacuum for bell-jar demonstrations without external power

Medium-size 5-inch pulley on a universal clamp accepting a variety of support surfaces

16.5" Inclined Plane Simple Machine Model Chemistry Miniature desktop torso with 12Sixteen and a half inch wooden inclined plane with a paired cart, demonstrating mechanical advantage as the angle of incline changes the effort needed to roll the cart up the slope.