Today in our Rube Goldberg project we made several modifications to our RG as a whole. We created the pulley that we will use to dump the food coloring into the bowl of water. We gave our marble a smoother surface to ride on using tape, and we tried our project on the table for the first time. Our last step, though, is very tricky. We plan to roll golf balls down a ramp which will knock our bowl of charoset onto a seder plate. The problem is, we couldn’t find a way to hold the balls still while the first part of the RG is happening.  They just kept sliding down the ramp. Also, the dominos we plan to use to knock down the golf balls didn’t even give the ball a push when they landed on it.