Rectangular Block - Glass, Made from imported optical glass with optically worked surfaces, All angles accurately worked with edges slightly bevelled and glass free from bubbles, Size 75 x 50 x 12 mm
Water Kit, Magnetic Water Molecules, 1 Cup, Contents: Plastic Cup: 1, Water Molecules: 12, Sodium: 1, Chloride: 1, Ethane Molecule: 1, Hydroxyl Group: 1, fun tool to help you teach water concepts, students will use these magnetic water molecules to discover hydrogen bonding, make ice etc