Mini_Activities

Weston Middle School	Technology/Engineering Course Materials	Weston, Massachusetts
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Grade 7 Design-Construction
	Building Big Forces Mini-Activities	Links
Course Home Syllabus Calendar Class Notes Assignments Gallery Additional Material Summary	Mini-Activities-to Do in Pairs: Tension (pulling force- the rack) Compression (pushing force)-tell story of Giles Corey Torsion-Geeks Bending-Sponge Beam See more activities at Building Big Educator's Guide Extra time: Determining tensile strength: Suspend a concrete cinder block from the ceiling with a cable made up of 7 thin cotton strings tied together. Have students one by one cut the strings until the block crashes to the floor. Discuss how many strings are needed to hold the block to have a 100% safety margin.
	Revised April 2007 by Jonathan Dietz, dietzj@mail.weston.org

Technology/Engineering Course Materials