When light shines on something transparent, like glass or a clear Ziploc® brand sandwich bag, the light passes through. But when light shines on opaque materials, like paper, block the light and create a shadow on the other side. The closer the puppet theater is to the flashlight, the bigger the shadows are. That’s because the puppet theater blocks more of the light if it’s closer to the flashlight.

Learn more:

When light shines on something transparent, like glass or a clear Ziploc® brand sandwich bag, the light passes through. But when light shines on opaque materials, like paper, block the light and create a shadow on the other side. The closer the puppet theater is to the flashlight, the bigger the shadows are. That’s because the puppet theater blocks more of the light if it’s closer to the flashlight.