A Great Project for kids : Make a Catapult
There are three reasons why making a catapult is a great project to do with your child. In this article I explain these reasons and give you some great ideas for catapults that you can make with kids
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Make Your Own Burglar Alarm
Recommended Age Groups: Later Elementary, Middle SchoolAbout this lesson from Peter CabauySo you want to make a burglar alarm. The question is, why?