3-Part Numbered Adult Human Skull Model with Removable Cap, 9" Size_Medium letting students measure rotational distance

letting students measure rotational distance against linear advance to derive the mechanical advantage of the spiral

Heavy-base Bunsen burner adds stopcock gas control for fine flame adjustment during chemistry experiments with liquid propane or butane fuel

25 inches tall with five 4

Can withstand high temperatures and thermal shocks

with identical volumes across specimens for direct mass-density comparison

3-Part Numbered Adult Human Skull Model with Removable Cap, 9" Size_Medium letting students measure rotational distanceLife size numbered human skull with removable skull cap exposes the cranial cavity, supporting identification key exercises in medical and nursing anatomy training.