Today is a very exciting day for Emma's kindergarten class. Emma, Robert, and the rest of the students don't understand how they can all look so different on the outside, but look very similar on the inside. So Dr. Shaw is coming to visit, and she's bringing Mr. Bones, who is a real life-size skeleton. Mr. Bones is going to help Dr. Shaw teach her lesson about the human body. Dr. Shaw has also brought a cool body screening machine with her so the children can see what their insides look like.