Here are the videos we watched in the library and in class today. Check them out again to help you decide what engineering project you would like to do!
http://teachers.egfi-k12.org/build-a-bobsled-racer/
http://teachers.egfi-k12.org/science-engineering-of-the-sochi-olympics/
http://opb.pbslearningmedia.org/resource/phy03.sci.phys.matter.zhelmet/balloon-brain-designing-a-helmet/
http://www.sharemylesson.com/teaching-resource/Science-of-Ice-50027415/
And....here's a new one! This page has loads of videos. Check it out!