The Franklin Institute
Spotlighting Simple Machines
Simple machines such as inclined planes in wedges and screws are explained.
Curated OER
Integrated Publishing: How Mechanical Advantage Is Used
Describes how pulley systems are used in the real world, including the role of the mechanical advantage in selecting the proper pulley system.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Building the Pyramids
Egyptians using pulleys to build a pyramid.
NASA
Nasa: Simple Machines
A lesson plan site that contains activities designed to give grades 3 and 4 experiences in using simple machines.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Simple Machines
Good combination of teacher demonstration and student interaction for this simple machine lesson. Great for talking about force and work. Plans are for grades 2-4, yet are adaptable.
NASA
Nasa: Simple Machine Resource Chart
This site provides a chart that lists the six simple machines, defines them, explains how it helps and gives examples.
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