Boats

This week and last week our class had been designing and building boats.
Things we learnt were that objects with air in them float, objects with a flat bottom float, things that are light weight float, things that are made from foam float, and things that are hollow float.
We had a chance to test our boats and then go back to the build stage to see if we could improve our designs.
All our boats floated! But we were not sure how long they would last in the water...