Year 3 have been investigating how light travels in straight lines by shining a torch through two or three cards with tiny holes that needed to be lined up in order to see the light on the big white card at the opposite end. We also carried out an investigation to find out which material would be best suited to use as curtains to block out the light in a child’s bedroom. We used a torch and a big white card at the opposite end, placing three different materials between them. Only one made a dark shadow, so that was the one that would be best to use. It was opaque. The other two were translucent and transparent.
