Balloon Rockets - I've done this in several science camps I've conducted. Kids have fun with it. But, when the balloon deflates it may fall off the straw because it's surface area changes - another good thing to show and explain to kids.
Because geeks like arguing about things to show off their intellectual superiority (think nerdy peacocks), here's a visual guide to lightsabers so you can prove you're right when arguing with a fellow Star Warser at the bar over a.
265 TRIFOLDS TEMPLATES FOR INTERACTIVE NOTEBOOK OR FLAPBOOKS. Trifolds are a notebooking favorite and staple. Add something new to your trifolds! These 265 will never leave you wanting for a useful or interesting trifold. This is perfect for designers of interactive notebooks and flapbooks!