This week's challenge is to make a balloon poppers!
Like catapaults or kickers they push objects along a path.
Use these to shoot pom poms, confetti, marshmallows....
Create a target and grab some friends to see who can hit the target the most times, the farthest distance....
Does changing the size of the balloon help?
What about the changing the diameter of the tube?
Try varying the length of the tube...
Here is a link to a great 'how to ' article!
cardboard tubes (like toilet paper rolls, paper towel rolls)
pom poms, marshmallows (other soft items to launch)