I bought 20 plastic slinkies from the Dollar Tree ($1 each) and created two labs to do in science with them. The kids had an absolute blast trying to find the best angle. I just supplied a cardboard ramp to each group and let them have at it! Here is the link to the two FREE SCIENCE LABS! Enjoy!
Smart Chick Teacher's Blog 
I’ve awarded you a Versatile Blogger Award. You can pick it up at Making It As A Middle School Teacher.
http://makingitasamiddleschoolteacher.blogspot.com/2012/01/my-1st-blog-award.html