We tried another sight experiment.

This time we stared at a yellow, black and blue flag on the Smartboard for 20 seconds. When the flag was taken away some of us saw a navy, red and white flag. ( Stars and stripes flag ) .

We saw a different coloured flag because our eyes start to get tired when we look at things for a long time and we start to see something different.

About half of the class saw the Stars and Stripes flag and the other half saw nothing. So, we discussed the fact that experiments do not always have the same result.