Water Molecular Lattice Model Kit, 199-Piece Biology_Health & Genetics 600 turns) and a load

600 turns) and a load hook beneath the core let students isolate the effect of turns from current on electromagnet pull force

Concave glass mirror at 75mm aperture and 75mm focal length

5-inch plastic moment-of-inertia disc on a magnetic-base ball bearing

Cork-lined three-finger extension clamp on a 5

Mid-range 60mm reading magnifier with a 15cm focal length

Water Molecular Lattice Model Kit, 199-Piece Biology_Health & Genetics 600 turns) and a load199 piece water lattice kit for building a three dimensional representation of hydrogen bonded water molecules, illustrating the arrangements that underlie water's unusual properties.