Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: Sizing
First determine the inner barrel size of your potato cannon mine is 1.5 inches
Step 2: Main Body
You are going to take half of a water bottle and cut off the bottom and cut a slit up the side and size it a little bit smaller than the barrel
Step 3: Stuffing
Take a rag of some sort and stuff it into the projectile and tape it closed
Step 4: Finishing
And the wrap in duct tape and fire
Participated in the
Launch It! Contest