The children tested lots of different items from around the classroom and created a chart to show which items would be the best to make boats from. The properties that they decided were most important for the materials were: buoyant, waterproof and sturdy.
The next day, the children used this research to design and make boats from everyday items. They then tested them in our own version of a stormy sea and evaluated them against the properties they had previously decided were important.
The children also had to make sure the test was fair and that they had left a place for the Vikings to sit and row!