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Listed under: Science > Forces and energy > Heat > Thermal expansion

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Elliot and the Surfing Scientist: Shrinking and expanding metals

TLF-IDM015808

Explore with the Surfing Scientist team what happens when metals are heated and cooled. Find out what happens to a metal ring when it is immersed in extremely cold liquid nitrogen. What do hinges on the Sydney Harbour Bridge have to do with all this? Find out.

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My Place - Episode 14: 1878: Henry, The dough machine

TLF-IDM009333

This 3-minute film clip is from the ABC My Place series and tracks the experiences of young boys Henry and Franklin in 1878 in Australia. In this clip, the boys invent 'The spoon cranking dough churner' to make working life easier for their friend. There is an accompanying set of downloadable worksheets which focus on inventions ...