How is your forearm like a lever?
* What makes it easy to pull a flag up a flagpole?
* How can a windmill help to do work?
Janice VanCleave's Machines includes 20 simple and fun experiments that allow you to discover the answers to these and many other questions, plus dozens of additional suggestions on how to develop your own science fair project.
Learn how an elevator works using a box, string, a paper cup, and some coins; build a bubble machine with cardboard boxes, Styrofoam, and wire; and much more. All experiments use inexpensive materials and involve a minimum of preparation and clean up.
Children ages 8-12
Also available in the Spectacular Science Projects Series:
* Janice VanCleave's Animals
* Janice VanCleave's Earthquakes
* Janice VanCleave's Electricity
* Janice VanCleave's Gravity
* Janice VanCleave's Magnets
* Janice VanCleave's Molecules
* Janice VanCleave's Microscopes and Magnifying Lenses
* Janice VanCleave's Volcanoes
* Janice VanCleave's Weather
- ISBN10 0471571083
- ISBN13 9780471571087
- Publish Date 3 March 1993
- Publish Status Out of Stock
- Out of Print 21 December 2009
- Publish Country US
- Imprint John Wiley & Sons Inc
- Format Paperback
- Pages 94
- Language English