Question: Create a spectrum of light using a prism
Options:
Make a room with a window dark.  In the shade of the window have a hole.  Let sun light through the hole and into the prism.  A rainbow will appear.
Make a room with a window dark.  In the shade of the window have a hole.  Let moon light through the hole and into the prism.  A rainbow will appear.
Answer: Make a room with a window dark.  In the shade of the window have a hole.  Let sun light through the hole and into the prism.  A rainbow will appear.