Demonstrate real world examples of conservation of mass, surface tension, polarity, osmosis, saturation, and more. Learn the difference between hydrophobic and hydrophilic. Discover how to neutralize these amazing polymers. All of these polymers are reusable for hours upon hours of mesmerising fun. Not suitable for children under 3 years. To be used under adult supervision. Each Complete Kit Includes:Instant Solid Powder, 120g• 224g x Space Sand• 100 x Super Snow• 36 x Corn Cups, 12 x Mixing Spoons• 12 x Colouring Tablets• 12 x Student Hand-outs, 1 x Teacher Guide .