Yr 5/6 are studying light this term. They discovered that you can only see objects because light reflects from them into our eyes. Have a look at them exploring this. They also discovered that light travels in straight lines and that you can't see objects around bends - not without a reflective surface! They also watched a video which shows how our brains try to make patterns. Be warned - there are lots of black and white flashing lights - but at the end of 2 minutes - the children were amazed! Here's the link - but be careful if you might have trouble with the flashing lights!