We made oobleck in class after we read the book by Dr. Seuss: Bartholomew and the Oobleck. It was about a king who wanted a different 
type of weather to come down from the sky. Oobleck came down and got stuck on everything. When the students first saw the oobleck in class, they thought it would be a liquid, but then they were surprised when they touched it and it seemed like a solid. We debated about which form of matter it really was. It is actually neither a solid or liquid but has properties from both stages of matter. Formally it is known as a non-Newtonian subtance. This means that when a small amount of force is used, it acts like a liquid, but when more force is applied, it acts like a solid.Oobleck Recipe
2 cups of corn starch, 3 drops of green food coloring, enough water to make a thick mixture (about the texture of pancake batter) I usually measure equal amounts of water and corn starch, but mix water in slowly.
No comments:
Post a Comment