How to Build a Submarine 

Neutral buoyancy! As a Naval Engineer, build a submarine that can navigate out of the surface and underwater.

Original Post by : http://curiositymachine.org

 Collect

• 2 baloons
• scissors
• empty water bottle
• 2 syringes
• rubber band
• 2 pieces of plastic tube

Bobby and students from Iridescent's Bronx, NY, studio show you how to be a Naval Engineer and build a submarine out of plastic bottles. The challenge is to reach neutral buoyancy.

Build your own and post your findings into curiositymachine.org, so you get feedback from Iridescent's engineers and win badges!