Sinking boats

Today their task was to find different things to act as boats for the cargo of marbles that we had.
They had so much fun counting the marbles and seeing how many we could get in before the boat sank.

We were also able to see how cargo is put in different sections of a boat so that it does not topple over. We used this small Frisbee and put blue tack (prestic) in to make 4 sections. So many more marble are able to fit on this way. Without the blue tack it toppled over so quickly.