St Patrick's Primary School, The Loup, Moneymore, Co Derry

Sink or Float Challenge in Primary 7

11th Mar 2026
As part of World Book Day in Primary 7, we completed an investigation linked to our class story. We were given the challenge of building a structure that would float and also hold added weight, using only tinfoil. We had to use our collaboration and scientific skills to consider the size, shape and the placement of the weights to keep our structure afloat. Our winning structure held over 700 grams!