Challenge 2 Watercraft Design Part 1
 Making a boat out of straws (10), 20 cm piece of duct tape, 20 cm length of cling-wrap and a plastic cup.
The time limit is 50 minutes design and construction.
The 'boat' must support the mass of 30 copper discs for 10 seconds.

The designs were innovative and process went smoother than the bridge challenge.  From the teaching perspective it was a delight to see the communication and brainstorming step up a gear as they all rose to the challenge of building their boat. 
The winning design will be mentioned my next post.