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Rob's North York Moors Railway: The Steam Locomotive
A page describing the parts of a steam engine and explaining their operation. Thorough discussion of the parts.
Hunkins Experiments
Hunkin's Experiments: Steam Power
Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one uses...
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Footprints Science: Power Station
This animation illustrates how steam is converted into electricity.