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What Happens If You Hydraulic Press Oobleck?

time:2023-06-04 views:(点击 176 次)
[Article Summary]:Oobleck is a suspension of cornstarch and water that acts like both solids and liquids. The name derives from Dr. Seuss’ 1949 book Bartholomew……

Oobleck is a suspension of cornstarch and water that acts like both solids and liquids. The name derives from Dr. Seuss' 1949 book Bartholomew and the Oobleck.

Scientists frequently use oobleck to demonstrate non-Newtonian fluids. They vibrate it, run across it, shoot at it and drop it - even using it to patch potholes!

What is oobleck?

Oobleck is a mixture of cornstarch and water that acts both as a solid and liquid, giving a slimy and gooey texture, easy manipulation into different shapes, and quick cleanup after playtime. Oobleck makes for an engaging activity for children on rainy days or when bored! It makes an engaging activity during rainstorms or any time they feel stuck inside!

Oobleck can also serve as an excellent way to introduce children to non-Newtonian fluids, such as non-Newtonian liquids like Silly Putty or Kinetic Sand. When pressure is applied, such liquids move slower than typical liquids and form solidified blocks or forms if you press on them with your hand - like Oobleck when compressed between your hand and surface of Oobleck (like solidifying as solid when pressing with fingers). Once released slowly the pressure will flow again like liquid. Other non-Newtonian fluid examples include Silly Putty and Kinetic Sand for examples.

If you want a more immersive Oobleck experiment, put some into a Ziploc bag and gently slap the side. This will cause it to firm up into solidified material before flowing back out again upon your movement. Similarly, other non-Newtonian fluids, such as ketchup or latex paint will flow freely out if you squeeze or shake a container, while they won't flow when hit against something or squeezed.

Make Oobleck by mixing 1.5 parts cornstarch with one part water. You may want to add food coloring or flavoring for additional interest for children. Oobleck is non-toxic but should always be used under adult supervision.

Oobleck can be easily made at home using these ingredients. Once mixed, allow to cool before playing with. Over time it may change its texture so be sure to store in an airtight container if you want to enjoy more playing later!

As it can be dangerous if it comes into contact with eyes or mouth, oobleck should never be dumped down the drain as this could clog pipes.

How is oobleck made?

Oobleck, an unassuming mixture of water and cornstarch, has quickly become one of the Internet's favorite non-Newtonian fluids. A great way to demonstrate to children how non-Newtonian materials vary their viscosity with applied pressure; for instance, when picked up or slapped it feels solid but becomes liquid as you pour or run it across it.

This experiment is great because it requires only simple kitchen ingredients and steps for completion. Plus, it's lots of fun - but be warned: it can become messy! Both you and your children may end up covered in goo before it's all said and done - although thankfully this mess is easy to clean up and won't leave stains behind in their clothing.

Oobleck is a fantastic hands-on science activity for both kids and adults that's sure to engage both. Deriving its name from Dr Seuss stories, Oobleck is one of the easiest experiments you can conduct with children; all it requires are common kitchen ingredients and some patience!

To make Oobleck, begin by mixing 1 part water and 1.5 parts cornstarch together in a mixing bowl. Some people add food coloring for extra flair! Stir your mixture until it reaches a consistency between liquid and solid; this may take time but don't give up!

Once your oobleck has set, it's time to test its viscosity. Simply place it on a plate and slap it with your hand; if pushed hard enough it should flow like liquid!

To test how Oobleck performs under pressure, try crushing it with a hydraulic press. Oobleck resists deformation because it's made up of shear-thickening material which means the faster you try to deform it, the greater resistance you will encounter - check out this fascinating demonstration on video below!

What happens when oobleck is crushed?

Oobleck is an incredible substance that demonstrates both liquid and solid characteristics at once, taking its name from Dr Seuss' 1949 book Bartholomew and the Oobleck, where an unpredictable green substance known as Oobleck falls from the sky to interrupt daily life in its kingdom. Oobleck provides an engaging hands-on way for learners to discover how different types of fluid behave under pressure as well as showing how consistency of materials changes with pressure changes.

To create Oobleck, combine 1/2 cup of cornstarch with 1/4 cup of water in a bowl and stir until the consistency resembles honey, adding food coloring if desired. Once it is ready to use, children can play with Oobleck! They can squish it between their hands or use plastic toys to see how they sink. They could also try slapping or tapping Oobleck to see its reaction: when hit hard enough it becomes solid-like before flowing back like liquid again when no pressure is applied.

Oobleck is an interesting material because it can be molded to conform to any shape you need it for, such as your hand or other object. Additionally, clean-up with warm water should any get onto hands or clothing is easily accomplished making this an engaging activity for toddlers and preschoolers.

Oobleck should never be dumped down the drain as this can clog pipes. Instead, dispose of it in the trash or store in an airtight container or zip-seal bag to use again later - just be careful that dogs don't try eating it! If your oobleck won't stay put in its container, adding some vinegar can help make it more solid, or try adding oil or cooking spray drops for even better shape retention when playing with.

What happens when oobleck is extruded?

Are you looking for an exciting hands-on chemistry experiment? Try mixing equal parts water and cornstarch together to make oobleck, an unusual non-Newtonian fluid which acts both like a solid and liquid depending on how much pressure is applied to it. When compressed, it firms up into solid form; but when no pressure is applied it flows off your hand like liquid due to shear thickening; particles collide when pressure is applied causing them to form lumps when left alone.

Scientists have long studied oobleck's behavior, and now have developed an accurate mathematical model that accurately predicts its behavior under different conditions. This team-created model includes an "oobleck clumpiness variable", which describes how much the deformed oobleck clumps up when deformed; they put this variable through rigorous testing by simulating previous experiments involving squeezing it, running over it, shooting it, dropping it and so forth - the results matched these experiments perfectly.

The clumpiness factor of oobleck is also essential in predicting its response to sudden forces such as impact. If an egg were dropped into it while still sitting in its container, the oobleck would clump together and absorb its force, protecting the egg while quickly returning back into liquid state. Scientists hope their model can also predict how other solutions of ultrafine particles might perform in real-world applications, such as filling highway potholes or temporarily hardening to cushion vehicle impacts.

To create your own oobleck, combine 1 part water with 1.5 to 2 parts cornstarch in a bowl until the mixture becomes thick and pasty. You may add food coloring if desired for different hues of oobleck. If you don't have access to a bowl, an alternative way is using a Ziploc bag and freezing the mixture before transport.


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