Science Activities Black Pepper Milk Dish Soap. Fill the plate with water almost to the edge, but ensure that it doesn’t. To start, get a plate and fill it with enough water to reach the edges, but not overflow it.
Web dish soap instructions fill 1 small bowl half full of water for each child cover the top of the water with black pepper (about 1 tps each). For this experiment, you’ll need: Add dish soap to a small bowl for the kids to dip their fingers.