We kicked science week off with an experiment to prove that light travels in straight lines. We used three pieces of card and made a hole in each before shining a torch through the hole. We knew that light must travel in straight lines because we could only see the light when all three holes lined up perfectly.
To prove this further, we then moved the middle card and tried to shine the torch through it again. We could no longer see the light from the torch as the light was unable to bend around the middle card.
