The words that complete the free printable puzzle, fill-in the boxes, come from what you see in the birthday train picture. In the fill in the box free kids birthday game letters have been left to help the kids solve the puzzle. There are six words to be found from looking at the birthday train picture. Page one of the train kids birthday games is the game itself and page two is the answer key.
This is an example image of page one of the free printable Birthday Train Fill-in Game (Kids Activity) which can be found lower on the page in the “Free Printable” section.

Free Birthday Train Fill-in Game (Kids Activity).
