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    • #15363
      Profile photo of Andrew Normand

      Smart materials that change to a predetermined shape given the right trigger.

      Get them from http://www.mutr.co.uk/ they have smart wire and smart springs.
    • #15364
      Profile photo of Andrew Normand

      The springs are a big wow factor – pull them out of shape and scrunch them up – then drop them in a beaker of hot water and they return to their original spring shape. You can also rig up a wire or spring such that a mass stretches it. When a current heats the wire or spring it returns to its original shape lifting the mass.
      Themes: Materials, electricity, forces, investigations

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