Two Ways to Build a Rubber Band Powered Lego Car - Frugal Fun For Boys Awesome STEM activity for kids. Make a Rubber Band Powered Lego Car. Should you appreciate arts and crafts an individual will really like our site!
To go with MFW:ECC Castles @ Germany How to build an easy catapult for kids and learn about tension. Build a simple LEGO catapult with basic bricks. Fun STEM activity for kindergarten and grade school kids.