Wow! When you mix cornstarch with water it acts as a solid and a liquid, depending on what you do with it! Here's what we learned: Gigi says "When you slowly stick your hand in Oobleck, your hand sinks(liquid).But...if you punch Oobleck it is hard surface!(solid).We figured out that Oobleck acts as a liquid when you put no pressure on it, but acts as a solid if you do put pressure on it!!!!"
We learned that Oobleck is a Non-Newtonian Fluid, it's viscosity changes based on the pressured applied. The layers of fluid don't move at the same rate so when you apply pressure quickly, the fluid doesn't have enough time to move, so it's seems like a solid. Other Non-Newtonian Fluids include: mud, quicksand, sand, blood, yogurt, ketchup... Sir Issac Newton came up with these fluid models and that's why they are named after him! We will learn more about Issac Newton when we learn about laws of motion! Be sure to check out the links page for more Oobleck videos!
It's cool that this is applicable to real life situations. After the BP oil spill off the Coast of Louisinanna, engineers used their knowledge of Non-Newtonian fluids to solve the problem. They poured drilling mud in the pipe, to fill in the cracks. They knew it would act as a liquid when no pressure is applied. Then, they poured tons of concrete on top, to apply a huge amount of pressure, causing the drilling mud to seize and act as a solid. This stopped the oil from continuing to spill in the Gulf of Mexico! Non-Newtonian fluids are AWESOME!
We learned that Oobleck is a Non-Newtonian Fluid, it's viscosity changes based on the pressured applied. The layers of fluid don't move at the same rate so when you apply pressure quickly, the fluid doesn't have enough time to move, so it's seems like a solid. Other Non-Newtonian Fluids include: mud, quicksand, sand, blood, yogurt, ketchup... Sir Issac Newton came up with these fluid models and that's why they are named after him! We will learn more about Issac Newton when we learn about laws of motion! Be sure to check out the links page for more Oobleck videos!
It's cool that this is applicable to real life situations. After the BP oil spill off the Coast of Louisinanna, engineers used their knowledge of Non-Newtonian fluids to solve the problem. They poured drilling mud in the pipe, to fill in the cracks. They knew it would act as a liquid when no pressure is applied. Then, they poured tons of concrete on top, to apply a huge amount of pressure, causing the drilling mud to seize and act as a solid. This stopped the oil from continuing to spill in the Gulf of Mexico! Non-Newtonian fluids are AWESOME!