My favorite part of my field trip today was when my group and I stood in front of a sand box that projects onto the sand and if you scoop the sand and make a mountain it has lots of layers of different colors like red,green,yellow, orange, purple and white. If you dangle your hands over the sand box you can make the water that is projected from the projector run down the mountain. I thought this part of the field trip was my favorite because it was cool because of the colors and the “rain”. when the water hits the land and it erodes away some of the land back into the bodies of water. When this happens the water picks up the dirt and sand and other stuff on land and it makes the water dirty. If I was to add an activity for the next years fourth graders will to be to swim in the lake and the small pond!