A three part science lab using Balloon Rockets. These can be purchased cheaply at places like: www.yoyoballoons.com
You will go through quite a few of them, they pop if used too many times. I used 60 rocket balloons for a class of 25 students.

Help
I have taught for 16 years in a large, urban, public school district (I have taught in three different schools) and I LOVE it! I taught self-contained, multi-age gifted class for past seven years. Prior to this assignment, I taught regular ed 4th and 5th grades. I am now in an at-risk school teaching 5th grade! I am so lucky to have such great students, past and present!
