I am doing my blog on wonder #509 "Have you ever lost your marbles?" In the 1800s marbles where very popular. Some people think that marbles eventually came to be assosiated with peoples minds or common sense. A marble is a glass ball that has a design or color it doesn't need to have a color to be a marble. Here are some vocabulary words to add to your list. Puzzling means not understandable. Amazed means you can not beleive something(unbelievable). This article made me want to learn how to build marbles. I love to do crafts so that would be a fun project for the future.