![]() Perhaps this could be the subject of another scientific investigation! The kids thought the carbonation might affect things, but when we first added the tonic water to the corn starch it bubbled a lot, so we are guessing all the carbonation went away at that early stage. The kids were really surprised that it wasn’t bubbly. When pressure was applied it turned solid, like a putty consistency, but as soon as you removed the pressure it turned back into liquid. We went into our mudroom, turned off the lights and sat on the floor in front of our the black light.Īnd even with the paint and tonic water instead of water, it still had all of those awesomely, amazing qualities that we love so much in Oobleck. The kids couldn’t wait to head into our mudroom and test out our new Glow in the Dark Oobleck! The crazy non-Newtonian features will be evident immediately! It is very easy to make a mess while mixing it all together. Mix with the spoon.Īdd 1 cup of tonic water and mix carefully. ![]() In the bowl add 2 cups of corn starch and the glow in the dark paint (we use our whole tube). ![]() One very easy to clean space you can make really, really dark. So cool!Ĭheck out our Video of Glowing Oobleck in Action! So we could tell which ingredient was causing each glow just based on the color. While glowing under black light the glow was blue, but when it was glowing in the true dark it was green. What was amazing was to see how the colour changed. Two different types of glow, mean this Glow in the Dark Oobleck recipe is extra cool in the dark! You can “recharge” the glow simply by turning on the lights again for a minute. You will have the brightest glow when you first turn off the lights, then it will fade. For this glow to work it needs to charge in the light. Glow in the dark paint works in a different way, due to a process called: luminescence which is caused by chemicals called luminescent phosphors in the paint. Tonic water fluoresces under black light due to a special ingredient in it called quinine. So how does ours glow? We used two ingredients to make our oobleck glow – glow in the dark paint and tonic water. I’m sure you have even seen videos of people walking on oobleck! Becoming solid under pressure, and liquid without pressure. That is until Oobleck comes on the scene, then nothing acts as predicted. These two properties work together to create predictable behaviours in liquids. If there is a lot of friction, it is a thicker liquid, and has a higher viscosity. Viscosity is the friction created between the molecules when the liquid is flowing. With density we know higher density sinks, lower density floats. Whether it rushes quickly or moves slowly like sludge. Newton’s Law of Viscosity states: the shear stress between adjacent fluid layers is proportional to the negative value of the velocity gradient between the two layers.ĭensity and viscosity affect how a fluid moves. We have loved studying Issac Newton’s theories in the past but with oobleck we have a non-Newtonian fluid because it doesn’t follow his laws of Fluid Viscosity. Seuss book – Bartholomew and the Oobleck… oh the places you will go with oobleck in your science lessons! Some people call it “goop” others call it “magic mud” but I just love calling it Oobleck, a name given to it based on it’s similarity to a substance in the Dr. But release the pressure and it flows like a liquid. At times almost impenetrable, breaking into chunks. Put it under pressure and it becomes a solid. Oobleck is a non-Newtonian fluid that acts as both liquid and solid. So much better than screen time! We would play for hours having an amazing time. Growing up, if we were getting underfoot, my mom would give us a “bucket of goop” and let us go crazy outside with us. A GREAT HALLOWEEN OOBLECK RECIPE & GAMEĭisclaimer: This post contains affiliate links.CHECK OUT OUR OOBLECK SCIENCE FAIR INVESTIGATION – We discovered a better way to make Oobleck!.The kids couldn’t wait to head into our mudroom and test out our new Glow in the Dark Oobleck!.Check out our Video of Glowing Oobleck in Action!.Newton’s Law of Viscosity states: the shear stress between adjacent fluid layers is proportional to the negative value of the velocity gradient between the two layers.What you will discover in this article! Toggle
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