GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC Packaging made of polystyrene. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC A polystyrene vending cup will flatten when heated. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC A hot glue gun heats the polymer used for the glue creating fine fibres. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC A variety of items made from polystyrene processed in different ways. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC Examples of materials that contain cross-linked polymers. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC Rubber can be made from liquid rubber latex and a weak acid such as lemon juice. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC After mixing acid with rubber latex, solid rubber is formed. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC Solid rubber being rinsed in water and moulded into a ball. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC Rubber ball being dried on a cloth. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC Testing the elasticity of the rubber ball. GATSBY SCIENCE ENHANCEMENT PROGRAMMEINNOVATIONS IN PRACTICAL WORK: FANTASTIC PLASTIC Polymorph granules soften when put into warm water, and can be removed as a clump and moulded by hand.