The saltwater blister egg experiment failed, why can t the eggs float? Obviously, a lot of salt has

In the saltwater blister egg experiment, the eggs may not float for the following reasons:

1.In terms of the ingredient list: the eggs that may be used are not fresh enough. If the eggs are too old, the density becomes higher and the buoyancy decreases, which will affect the results of the experiment.

2.In terms of production steps:

a.There may have been an error when adding salt. When adding salt to the water, you need to add it slowly and slowly, and at the same time stir well with chopsticks so that the salt can be fully dissolved.

If salt is added too quickly, the salt may not dissolve sufficiently, and the density of the solution will not increase significantly enough to cause the egg to not float.

b.There may have been a mistake when boiling eggs. In the process of boiling eggs, you should first boil the water, then put in the eggs, and cook them over medium heat for about 5 minutes, so that the eggs can be heated evenly and it will be easier for the eggs to float.

If the water is not boiled and the eggs are added, or if they are boiled for too short or too long, the eggs may not be able to float.

c.Soaking time may not be enough. In this experiment, the eggs are soaked in brine for a period of time to allow the brine to fully integrate with the contents of the egg. If the soaking time is insufficient, it may affect the effect of the experiment and cause the eggs to not float.

To ensure the success of your experiment, pay attention to the details in the ingredient list and the production steps, and follow the correct proportions and steps.

Only when the density of the brine is large enough that the buoyancy generated by the brine exceeds the weight of the egg, the egg can surface. Although you add a lot of salt, if the salt does not dissolve, the salt water is not buoyant enough. It is recommended to add salt to the water, then heat the brine, add salt, and let it at room temperature before putting the eggs in the brine to try.

Eggs soaked in salt water, why can't eggs float in the experimental poetry school? Obviously, a lot of salt has been added, but it may not have reached a certain concentration.

The salt is not completely melted.

Ingredients: 1 cup water; a pinch of salt; 1 raw egg; 1 glass; 1 tablespoon; 1 pair of chopsticks.

1. Pour water into a glass for approximately.

Five, six points full.

2. Put the eggs in a glass and the eggs will sink to the bottom of the water.

3. Add another tablespoon of salt to the cup.

4. Stir the salt water with chopsticks and observe what will happen.

Phenomenon: The egg floats in the salt water.

Probably because the salt is not completely melted. Scientific: Raw eggs have a greater relative density (specific gravity) than water, so they will sink. Salt is slowly added to the water, the relative density of the brine is greater than that of the egg, and the egg will rise.

Objects with less density will float on top of objects with higher density. The density of the egg is greater than that of water, so it will sink to the bottom of the water, but the density of brine is greater than that of water, and the salt content of the water increases, and the density also increases, so when the density of the brine exceeds the density of the egg, the egg will float. When buoyancy and gravity are equal, the egg will float or levitate.

Floating, the density of the object "the density of the liquid, the buoyancy experienced by the object = the gravitational levitation of the object, the density of the object = the density of the liquid, the buoyancy of the object = the gravity of the object sinks to the bottom, the density of the object" the density of the liquid, the buoyancy of the object "the gravitational force of the object".

The density of the human body is only g cm, which is only a little more dense than water.

Gasoline is less dense than water, so oil stains you see on the road will float on the water.

Seawater is denser than water, so it is easier for the human body to float in seawater. (The density of the Dead Sea is greater than that of a human body, so people can float in the Dead Sea.) ）

The salt is not completely melted.

Ingredients: 1 cup water; a pinch of salt; 1 raw egg; 1 glass; 1 tablespoon; 1 pair of chopsticks.

1. Pour water into a glass for approximately.

Five, six points full.

2. Put the eggs in a glass and the eggs will sink to the bottom of the water.

3. Add another tablespoon of salt to the cup.

4. Stir the salt water with chopsticks and observe what will happen.

Phenomenon: The egg floats in the salt water.

The density of the salt is wrong. When the amount of salt in the water is appropriate, if the density of the brine is just equal to the average density of the eggs, the eggs will be suspended in the brine, that is, when the eggs are immersed in the brine, the eggs will be placed where they are placed.

Because the density of salt water is greater than that of raw eggs, raw eggs float up. The reason why raw eggs float is because of the buoyancy of water, and the buoyancy of water is related to the density of water, according to the common sense of physics, the amount of buoyancy received by an object in water is equal to the gravity of the water discharged by the object.

Gravity is calculated according to the formula =mg= g v, then the greater the gravity, the greater the gravity, so the same volume of salt water gravity will be greater than the raw egg, that is, if the egg is completely submerged, the volume of the discharged water is equal to the volume of the egg, then the buoyancy of the egg will be greater than the gravity of the egg itself.

So, the egg floats.

1. Identify the materials that make up the object.

One of the characteristics of density substances, each substance has a certain density, and the density of different substances is generally different. Therefore, we can use density to identify substances. The method is to determine the density of the substance to be measured, and compare the measured density with the density of various substances in the density table, so that you can identify what kind of substance the object is made of.

2. Calculate the composition of various substances contained in the object.

3. Calculate the mass of an object that is difficult to weigh or the volume of an object with a complex shape.

According to the variant of the density formula: m=v or v=m, the mass and volume of the object can be calculated, especially for some problems where the mass and volume are inconvenient to measure directly, such as calculating the volume of an irregularly shaped object, the mass of a monument, etc.

The reason why the eggs can't float in the salt water in the shed is that the salt is less, and the concentration of the salt water is low, so you can put more salt, because the density of the concentrated salt water is greater than that of water, which will increase the buoyancy of the eggs, so that the eggs can float up.

Eggs, also known as chicken eggs and chickens, are eggs laid by hens, which have a hard shell on the outside of their eyes, and air chambers, egg whites and yolks inside. Rich in chole-solid deficient alcohol, rich in nutrients, an egg weighs about 50 grams and contains 7 grams of protein. The amino acid ratio of egg protein is very suitable for the physiological needs of the human body, easy to be absorbed by the body, and the utilization rate is as high as 98%.

Ingredients: two glasses, salt, two eggs.

Process: Pour half a cup of water into one cup and the same amount of concentrated brine in the other, then carefully pour the clean water into the brine, do not let the clear water mix with the brine, gently put the eggs into the water, the eggs will float on top of the brine.

Reason: Because eggs contain 73% water, other proteins and eggshells are higher than water, so they will not float in fresh water, and will not float in salt water with less salt. Because the egg shell has pores and an air chamber, the weight of the egg is reduced in the liquid, and 10 grams of salt can be added to 150 grams of water to make the raw egg float.

The reason why eggs can float in salt water is that the density of eggs is less than that of salt water.

Since the density of the egg is less than that of the brine, the egg will float on top of the brine. When water is added to the brine, the density of the brine will continue to decrease, and when the density of the brine is less than the density of the egg, the egg will sink; From the relationship between the spring force and the movement, when the egg is immersed in water, its buoyancy is less than the gravity, and the slippery combustion resistance force is downward, so the egg sinks, and the egg is immersed in salt water, its buoyancy is greater than gravity, the resultant force is upward, the egg floats, and the buoyancy decreases to the same as gravity, and the egg will float on it.

There is air in the egg, and the original density of the water is not enough to hold the egg, because after the salt is put in the salt, the density of the water becomes larger, so the egg can float naturally.

Conditions related to the blindness of the sinking and floating section of the object:

1. The rise and fall of an object is determined by the amount of buoyancy and gravity it is subjected to.

2. When the object is immersed in liquid:

1) If the object floats, the object sinks.

2) If the object floats, the object floats.

3) If the object floats, the object is suspended.

3. Objects floating on the liquid surface, floating g.

4. The sinking and floating conditions of the object can also be described by the density of the object and the liquid. The density of an object is expressed in terms of a substance, and the density of a liquid is expressed in liquid, then when an object is immersed in a liquid:

1) If the matter is liquid, the object floats.

2) If the matter is liquid, the object sinks.

3) If the substance is liquid, the object is suspended in the liquid.