(Never thought I’d be glad he drinks soda all the time.) Cut the upper one-third off the top of a 2-liter plastic soda bottle with a utility knife. Pour a few ounces of soda pop into the bottom ...

StratoLauncher IV Ultimate will propel a 2 liter plastic (PET) soda pop bottle over 350 ft. in the sky. Watch the last minute of the assembly video for launch procedure. Supports most .5L ...

A capped 2-liter plastic bottle containing a clear, colorless liquid is shaken. The liquid turns a deep blue color. At rest, the liquid returns to colorless. The cycle can be repeated many times. Ask ...

The main portion of the build is made out of plastic soda bottles (2 liter size) to end up with a chamber to store the chute, as well as a friction joint that holds the thing together. The video ...