In science we have been looking at light.
In our groups we chose 5 objects and put them under a box. We poked holes in the top with a pencil to see if we could see the objects through them and then put more holes in the side.
Finally, we shone a torch through the holes while looking through either the top holes or the ones in the side.
We discovered that you needed light inside the box to be able to see the objects.