Sand Puddle

Zack and Rex are having fun playing on Zerby Town Ridge. But the one thing that the ridge doesn't have is a big mud puddle. Zack and Rex decide to make one. They get some dirt and they get some water and put them together in a hole. But no matter how much they mix them together, it just doesn't make mud. They decided to add more dirt. No good. They call Walter the wash truck over to add even more water. Still no mud. They are confused. They go off looking for answers and find out from Fill the front loader that they were using sand, not dirt. They realize sand and dirt are very different. Dirt and water make mud, but sand and water make... sand castles!