The Cubs and Joey Scouts made Steam Powered Water Jet Boats. These boats use the power of steam to propel themselves across the water.
Most Cubs and Joey Scouts got their boat to work although some did catch fire to add to the excitement of the night.Next time the leaders need to double check the aluminium trays are actually aluminium not plastic to look like it :) (Plans for Put Put Boats)
Adam's Boat Works! Wombat was surprised they worked after a weekend of failures.
A Steampunk Jet Motor at work
Later in the evening Harry showed us his Steam Engine and we watched it run this lead to discussion varying from the properties of water and steam through to nuclear power generation and shearing.