"It's teeth!"

I was playing a PowerPoint trivia game with my 3rd grade class today where I would give the kids 4 hints about a word and they would have to guess what it was!  So, I gave these four hints:
So, after all of these hints, one of my sweet little smart ones proudly raised his hand and waited for me to call on him... When I did, he yelled "It's teeth" and then cheered with his group mates... Until I showed this slide of the PPT!