| CDN Pub Library: | $19.95 US (K7856CP) | | CDN School: | $29.95 US (K7856CS) | | CDN Board/District: | $69.95 US (K7856CB) |
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| Grades: | 3 to 6 | | | | | Runtime: | 13 minutes | | | | | Item #: | K7856 | | | | | Availability: | In Stock! | | | | | Format: | VHS | | | | | Also Available In: | | | | | | Closed-Captioning: | Yes |
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PRODUCT SUMMARY
For sale in U.S. and Canada only-- In Pressure, the islanders work together to retrieve a wedding ring that has fallen down a sink drain. With the help of a visiting inventor, they discover what a straw, plunger, vacuum and jackhammer all have in common: They are all useful tools that operate by manipulating a force called pressure. The islanders discover the differences and similarities between devices that derive their power from changing air pressure (pneumatic machines) and from liquid pressure (hydraulic machines). Thankfully, by applying what they learn about pressure and how their various tools work, the islanders recover the missing ring! Part of the multivolume series The Way Things Work, based on the best-selling book by David Macaulay. Includes a Teacher's Guide.
EDITORIAL REVIEWS
"The series is humorous, informative and very educational. Explanations are clear and relevant, with neccesary diagrams to explain exactly how things work...These are exceptional physics videos that merit a place in all educational collections."- School Library Journal (August 2003)
