For science today we read the book Bartholomew and the Oobleck by Dr. Seuss. 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. There are more picture posted of everyone on the classroom website.
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.
I hope you all have a wonderful Spring Break and I will see you in a week!
No comments:
Post a Comment