In this activity, middle schoolers will use a plywood ramp and various tornado tubes (made from tornado tube connectors and 2 liter pop bottles) to calculate the average speed of the tornado tubes. They will set up 4 investigations filling the 2 liter pop bottles with different amounts of water to see if mass affects the speed and acceleration of the tornado tube as it travels down the plywood ramp. The students will journal the outcome of each investigation and compare their data to see if mass does affect speed and/or acceleration.