Category Archives: 3rd grade science fair projects

Enhance your third grade science education with tips, 3rd grade science fair projects, ideas and discussions about science.

What can windmills be used for?

 What can windmills be used for?  Windmills are a very practical energy tool that has been used for centuries by humans to do difficult jobs. They are based on a very basic science principle that transfers wind energy to mechanical energy, and in some cases which then transfers mechanical energy into electrical energy. When you […]