The science of using salt water to float eggs

In terms of the relationship between force and motion: when the egg is immersed in water, its buoyancy is less than the gravitational force, and the resultant force is downward, so the egg sinks; When the egg is immersed in salt water, its buoyancy is greater than the gravitational force, and the resultant force is upward, and the egg floats upward, and rises to a part of the volume to expose the liquid surface, and the buoyancy decreases to the same as the gravity, and the egg floats there.

Since the gravitational force of an egg is equal to the average density of the egg multiplied by the volume of the egg multiplied by the acceleration due to gravity; Whereas, the buoyancy experienced by an egg when it is submerged in a liquid is equal to the density of the liquid multiplied by the volume of the egg and then multiplied by the acceleration due to gravity. Therefore, to compare the relationship between buoyancy and gravity, you can also directly compare the average density of eggs and the density of liquids. The average density of the egg is greater than the density of water, so when immersed in water, the buoyancy is less than the gravitational force and sinks; When the average density of the eggs is less than the density of the salt water, the buoyancy of the eggs immersed in the salt water is greater than the gravitational force and floats until they float.

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The science of using salt water to float eggs

Eggs float in salt water What is the principle of this.

Get the necessary common sense of life.

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The density of the egg is less than that of the salt water, so the egg floats on the salt water. If clean water is added to the brine, the density of the brine will continue to decrease, and if the density of the brine is less than that of the egg, the egg will sink. In the relationship between force and motion:

When the egg is submerged in water, its buoyancy is less than the gravitational force, and the resultant force is downward, so the egg sinks. Eggs are soaked in salt water, their buoyancy is greater than gravity, the resultant force is up, the egg is up, the buoyancy is reduced to gravity, etc., and when the eggs are there, they float there.

An object with a low density floats on an object with a high density. Because the egg itself is denser than water, it sinks to the bottom. But the density of salt water is greater than that of water, and as the salt content of water increases, the density also increases, so the salt in the salt water reaches a certain level, and the density of the salt water exceeds the density of the egg, so the egg will float.

If the volume of the egg soaked in the liquid is constant, then the higher the density of the liquid, the more buoyant the egg will experience. When the buoyancy force is greater than the gravitational force, the resultant force experienced by the egg is in the direction upward. According to the principle of force balance, the egg needs a pair of balanced forces to maintain balance, so the egg will float, reducing the buoyancy created by the liquid until the buoyancy is equal to the gravitational force.

The teacher gave us an experiment in which we floated eggs in water. I was suddenly shocked, "What to do with this experiment?" When I was thinking about it, Mr. Luo said again.

Start by preparing a clear glass, a raw egg, and a bag of salt. Fill the cup with water first, put the eggs in the water, then put salt in the water, and the eggs will float. "I got out of school with this subject in mind.

When I got home, my grandmother and I prepared the experimental materials. It's seven o'clock after finishing my homework and dinner, and my experiment has officially begun! Fill the cup with water first, then put the eggs in the cup and add the salt to mix evenly.

But my eyes widened, why can't the egg remember? So I have one, two, three, four. It's time to witness the miracle!

See the eggs flash! My experiment was a success! The whole family smiled in surprise when they saw it.

Why do eggs float when they are placed in salt water? Ha ha! I'm telling you!

The higher the salt content of the water, the higher the density and the greater the buoyancy. Put enough salt in the water, plus saturation, and the brine such as eggs is heavier than eggs. That is, if the brine is more important than the egg, the egg will float.

This is an egg that can float in very thick salt water, and it is a secret that can sink in clear water.

Because salt changes the density of the water and increases the power to float, it is possible to make the egg float, which is the charm of science.

That's because the density of the brine is greater than that of the eggs, which is why this happens, which is also caused by the different densities.

Because the outside of the egg is a shell, its mass is very light, and its buoyancy is not as large as the buoyancy of water, so it will float on top of the water.

1. Since the density of eggs is less than that of the salt water, the eggs will float on top of the salt water.

2. When adding water 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.

3. Explain from the relationship between force and motion: when the egg is immersed in water, the buoyancy is less than the gravity, so the egg sinks.