Teach the various types of Machines in Motion using concepts of gravity, air pressure, and motion. Study inclined plane, wedge, screw, lever, wheel and axel, and pully. Students will understand the properties of aire and the prinicples of flight, and will be able to relate science and technology to life outside the classroom. 96 pages.
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    On The Mark OTM2102 Taking Off With Flight Gr 1-3

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