ENGINES (MCKINNEY DONNA)(Pevná vazba) - diskuze

A full-color introduction to the engines that power our world, packed with STEM activities and text-to-world connections that invite kids ages 7 to 10 to discovery the wonderful world of engines and motors From ancient times to now, engines have powered the activities of people's lives. Engines With Science Projects for Kids invites readers ages 7 to 10 to explore engines through hands-on STEM projects that deepen their understanding of engines, what makes them hum, and all the special jobs they do for humans. - Learn about heat engines that power everything from trains to cars to planes to nuclear power plants.
- Explore electric motors and the magnetism that makes them run.
- Discover pneumatic motors that power tools and torpedoes, working with air squeezed under pressure.
- Learn about hydraulic motors with fluids under
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