How to make a Popsicle stick bomb. And make a big one with curves.

Where to buy Popsicle Stick (copy-past link) : http://bit.ly/2Px4Wgx
It only work with large Sticks.

Fast cobra wave that looks like a giant domino race.
Instruction to make an amazing physics toy, making a chain reaction.
Simple idea video for kids.

montesori project