In the picture shown above me, R.T., and Ben made the water wheel shown above. The way that this works is it has some holders that scoop the water and it brings it down. It can bring up a big load due to its small size so that it doesn’t take that long to load it up with water.water wheels were first used in 200 A.D. The way the water wheel was used for grinding stuff like, wheat, corn, and other grains. The types of water wheels are known as under shot, breast shot, pitch back, and over shot. under shot is where the water is flowing  in a stream and it pushes the wheel ford and it runs the water wheel. Overshot is where the  water flows over the wheel over the wheel and falls on the wheel turning it. breast shot  is where the water is halfway up the wheel and it falls on to the and it turn there. pitch back is where the water flow from the top but it falls in front of the water wheel. A way that the size helps is because it doesn’t slow it down draining the water and if one blade gets stuck it has a blade above it that will drain water into the other blade that got stuck. Anyway we got 2nd place in the contest for efficiency 🙂 ! I hope you enjoy this post.