- Measure your shadow in the morning , in the afternoon and in the evening…..when is your shadow the longest and when is it the shortest ? - Using your shadow puppet, measure its shadow when the torch is close to the puppet and when the torch is far away from the puppet. When is the shadow bigger and when is it smaller ? - Make a shadow with a book and then make a shadow with a clear plastic ruler. Which shadow is darker and which shadow is lighter ? Click to upload your findings !