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

The perfect science fair idea books . Spectacular Science ProjectsJanice Vancleave's Electricity * How do you make a battery out of a lemon? * Can a magnet prod

The perfect science fair idea books ... Spectacular Science Projects Janice VanCleave's Weather Why does it rain? What causes thunder and lightning? How does a

A fabulous collection of science projects, explorations,techniques, and ideas! Looking to wow the judges at the science fair this year? Everyone'sfavorite scien