How to do experiments on non Newtonian fluids, experimental phenomena on non Newtonian fluids?

Cornmeal cup, 1 cup of water, put some edible green pigment, pat it vigorously will be solid, let go of it and leave it alone, it will turn into liquid.

Non-Newtonian fluids refer to fluids that do not satisfy Newton's experimental laws of viscosity, that is, fluids that do not have a linear relationship between their shear stress and shear strain rate.

Non-Newtonian fluids are widely found in life, production, and nature. The vast majority of biofluids are now defined as non-Newtonian fluids. A variety of bodily fluids such as blood, lymph, and sac fluid, as well as "semi-fluids" such as cytoplasm, are non-Newtonian fluids.

Add it in a 1:1 ratio to form a paste, and you can also flow.

Those starches, take some water, and just use them as the proportion of sesame paste.

Stir with a cup and a half of starch and a cup of water.

Stir the cornstarch and water together.

It's not cornmeal, it's starch.

In short, non-Newtonian fluids.

The viscosity of will vary with applied stress. The most common non-Newtonian fluid is cornstarch dissolved in water.

Honey, human blood, and polymer solutions. In contrast to Newtonian fluids, such as water, the behavior of non-Newtonian fluids can only be described by temperature and pressure.

Non-Newtonian fluids have wonderful properties, such as shear thickening. If there's a bucket with a shear-thickened non-Newtonian fluid in it, and you punch it hard, that stress causes the molecules in the fluid to rearrange so that it behaves like a solid that your hand won't pass through. However, if you slowly put your hand into this fluid, then your hand will be able to penetrate it.

If you pull your hand out suddenly, the fluid will behave like a solid again, and you can pull the fluid out of the container this way.

Non-Newtonian fluids can help us understand the various fluids that exist in the physical world—plastic solids, power-law fluids, viscoelastic fluids, and time-dependent fluids—all of which are under shear stress.

and viscoelasticity present a complex and counter-intuitive relationship.

The method of operation of the non-Newtonian fluid experiment is as follows:

Ingredients: starch, measuring cup, coloring, water, stirring stick.

1. Take a measuring cup and introduce 20ml of water;

2. Add 5 drops of pigment to the water and stir well;

3. Take a clean measuring cup, 4. Add about 40 ml of starch;

5. Add the prepared pigment water to the measuring cup containing starch, and add the pigment water at the same time;

6. Pour in the pigment water while stirring to adjust the viscosity of the starch, 7. It should not be too thin or too dry (too much water can add starch in an appropriate amount), and the viscosity is adjusted to the non-Newtonian fluid.

Ingredients: starch (3 servings), beaker (1), measuring cup (1), hammer (1), plate (1).

1. Weigh 3 parts of starch.

2. Weigh 1 part of water.

3. Add 3 parts of starch and 1 part of water to the experimental dish (plastic plate) and mix evenly.

4. The production is completed.

5. Observation. 1) Grab a handful with your hands and knead it into a ball, and when you spread your palm, the substance will flow away from your fingers like a liquid.

2) Smash the substance in the plate with a hammer, which appears to be as hard as a solid.

3) Slowly put the hammer into the substance, the hammer will sink in, and the substance in the dish will exhibit the properties of a liquid.

1. Preliminary preparation.

Ingredients: cornstarch, water, food coloring, bowl, spoon.

The basic ratio is 2 parts cornstarch: 1 part water.

2. Refer to the steps.

Step 1: Pour a cup of water into a bowl and pour 2 cups of cornstarch into the bowl little by little, stirring as you go.

Step 2: If it feels too thin, you can add a few spoonfuls of starch and stir, if it feels too thick, you can also add a few spoonfuls of water and mix thoroughly.

Step 3: If you want to make colored fluids, you can add food coloring to different small bowls.

Play 2: Sink into a small dinosaur and see how to rescue them.

Play 3: Fill the basin with 10 times the amount of ingredients and try to stand on it.

When cleaning the site after the experiment, please dispose of the mixture in a garbage bag or in the trash. Don't pour it down the drain, even if you flush a lot of water, it may cause the drain to become clogged.

Expand the way you play. Find a net pocket to filter non-Newtonian fluids and watch them "dance".

Find a mold with some mixture, freeze it for two hours, and see what difference it makes.

If the venue and materials allow, play with a few children on the fluid;

Adding a fluorescent agent to the mixture and playing with the luminous model is not particularly dazzling.

Drop a few more food colorings, experiment with different color schemes, and make a creative abstract work.

Scientific principles. Most fluids are Newtonian fluids, and they will always maintain the same viscosity (or flow rate). For example, when you stand or swim in a pool, the resistance you feel will not change.

However, when pressure is applied to a non-Newtonian fluid, its viscosity increases. When we hit the mixture hard and quickly, the surface tension becomes larger, and the force is instantaneously divided around, so we feel that we can't knock it.

If you open your hand to dip into the mixture, move it slowly so that the cornstarch granules have time to move away, and your fingers can easily slide into a non-Newtonian fluid as if they were in water.

Creativity inspires.

Divergent thinking requires us to discover different answers and solutions to problems, and divergent questions are never the absolute right answer. Parents use more open-ended questions to exercise their children's divergent thinking and cultivate creativity in experiments with their babies!

What is the difference between solid and liquid? (Liquid is fluid, it takes on the shape of a container; Whereas the solid is rigid, it has its own shape)

Are non-Newtonian fluids solid or liquid?

What happens when you squeeze it?

What happens if a rock or doll falls into it?

Will it be like this forever? What happens if I leave it overnight?

What else is similar? (ketchup, honey, quicksand, toothpaste, shampoo, paint, etc.).

What are non-Newtonian fluids used for? In what areas do you think it can help?

If you fall into a big pool full of such non-Newtonian fluids, how can you save yourself? (Move slowly towards the edge, the slower the movement, the less resistance it will have).

Your question is very untargeted, so I'll just follow your meaning. Please go downstairs to a place where there is dirt and get some soil, mix it with water, and turn it into mud. This is a non-Newtonian fluid. If you are really lazy, you can squeeze out the pimples, and the liquid that comes out is non-Newtonian fluid.

How to make a non-Newtonian fluid? First prepare the starch and water, then the ratio is three to one, then the pigment is added, and after dyeing, it can become a non-Newtonian fluid.

The method of operation of the non-Newtonian fluid experiment is as follows:

Ingredients: starch, measuring cup, coloring, water, stirring stick.

1. Take a measuring cup and introduce 20ml of water;

2. Add 5 drops of pigment to the water and stir well;

3. Take a clean measuring cup for the rest of the pants and <>

4. Add about 40 ml of starch; The disadvantages are pure failure.

5. Add the prepared pigment water to the measuring cup containing starch, and add the pigment water at the same time;

6. Pour in pigment water while stirring, adjust the viscosity of starch, <>7. It should not be too thin or too dry (too much water can add starch in moderation), and the viscosity will be adjusted to the non-Newtonian fluid.

Tool raw materials: starch, water, plastic or stainless steel containers.

Take an appropriate amount of starch and pour it into a container.

Gradually add water and mix until it becomes sticky.

After the Yodono crack powder is mixed with water, there is no separate water layer on it, and it cannot be pressed down by hand, which is called a "non-Newtonian fluid" that is successfully proportioned.

Slowly reaching into a fist towards it, as if entering a thin flour puree, but a quick hammer blow with your fist found that it could not be punched into it at all.

Extension: Non-Newtonian fluids refer to fluids that do not satisfy Newton's experimental laws of viscosity, that is, fluids that do not have a linear relationship between their shear stress and shear strain rate.

Non-Newtonian fluids are widely present in life, production and nature. The vast majority of biofluids fall under the definition of tremor wide non-Newtonian fluids. Various body fluids such as lymphatic fluid and sac fluid on the human body, as well as "semi-fluids" such as cytoplasm, are non-Newtonian fluids.

If you need to use starch first to do non-Newtonian liquids, pay attention to the proportion, the ratio of starch and water is the key to modulation, find the right ratio, and it will be completed.

Ingredients required: water edge, starch, food coloring.

Specific steps: 1. First prepare water and starch. (Starch can be potato starch, corn starch, sweet potato starch).

2. Add water to the container, then add your favorite pigment for color mixing (no pigment is fine), stir well.

3. Add an appropriate amount of starch to another container.

4. Add the water you just mixed to the starch and add water while stirring. (Note that the volume of starch and the volume of water are roughly 2:1).

5. If you add too much water, add some starch, mix evenly, and pound it with a spoon to feel if you can't pat it. If there is, it is done.

Notes:

1. The water must be cold water, not lukewarm or hot water.

2. The secret of "non-Newtonian fluid" is so hard is that the water is mixed, and the density of the mixed tap water at this time is between liquid and solid, so Yichang Qiding should pay attention to the change of viscosity.