Fun Science Experiments : How to Build a Catapult

Building a catapult is simple, using a block of wood as a base, a plastic spoon as the arm, two push pins and a rubber band as the torsion energy. Assemble a simple catapult, using mini marshmallows as ammunition, with a demonstration from a science teacher in this free video on science.

Expert: Colin Kilbane
Contact: www.madscience.org/locations/mn/
Bio: Colin Kilbane is the head scientist of a school program called Mad Science.
Filmmaker: Ryan Ouradnik

Category:

Entertainment

Tags:

• science
• science experiments
• science experiments for kids
• fun science experiments
• mad science

[gigityman2]

dude im supportin him!!!!!!!!!

[Blaktar32]

shut up fuckhole, your the bastard, and stop calling him fat idiot!!!!!!!!!!!!

[TheBlackjak21]

This guys awesome for devoting his time to something important and he should know that, so get comments like this to the top

[grunigenjohn]

that was to dogn5

[grunigenjohn]

dont make fun of him for his weight u self conscience ass hole in steed of making fun of people go do something with your life dont just put someone down.

[dogn5]

looks like you need to lay off the mini marshmellows

[abbythenintendogirl]

@ryantyler2230 7th

[wingsoflead4]

To siege a castle!!!

[papivega10]

@abbythenintendogirl haha your welcome :)

[abbythenintendogirl]

@papivega10 Thanks "smarty".

[papivega10]

@abbythenintendogirl physics -___-

[rhyscarr04]

@abbythenintendogirl u think his fat he makes more then u he is better then u so shut up