The dependent variable in an experiment involving an egg floating in salt water would likely be the level of buoyancy, which can be measured by whether the egg floats or sinks in the solution.
No, floating in salt water is not an example of Bernoulli's principle. Bernoulli's principle states that as the speed of a fluid increases, its pressure decreases. Floating in salt water is due to the principle of buoyancy, where an object displaces an amount of water equal to its weight, causing it to float.
The ship has two forces that affect the fraction of its volume that is above the surface of the water. The ship's weight is the downward force. The buoyant force is the upward force. Since the ship is floating, the magnitudes of these two forces are equal. The buoyant force is dependent on the density of the water. The density of salt water is greater than the density of fresh water. Let's look at the equation below. Buoyant force = Density * g * Volume of displaced water According to the equation, the buoyant force is directly proportional to the density. Since salt water is denser than fresh water, the buoyant force will be greater in salt water than fresh water. This force will push the ship up higher than if the ship was floating in fresh water. You could do this at home. Make a saturated solution of salt water. Then place a small wooden block into a glass of salt water. Use a ruler to measure the height of the fraction of the block that is above the surface of the salt water. Then place the block into a glass of fresh water and measure the height of the fraction of the block that is above the surface of the fresh water. You will see that the block is floating higher is salt water than in fresh water.
sink, as the increased salt concentration will make the water more dense. This increased density will reduce the buoyant force acting on the cork, causing it to sink.
Things float in water if they are less dense than the water they are floating in. Putting salt in the water makes it more dense, so things that are a little more dense than ordinary water float in salt water.
The best object to float in salt water is typically something that is less dense than the salt water, such as a beach ball, foam noodle, or plastic bottle. These objects have a greater buoyancy compared to the surrounding water, allowing them to float easily.
The quantity of salt added to water is under your control and it will change the boiling point of water,i,e. the temperature of water. So quantity of salt is an independent variable while the temperature of water is dependent variable, when other factors are kept constant.
I dont know about the control but the independent variable is the amount of salt water and the dependent variable is the amount of water and salt rendered.
In an experiment comparing boiling regular water and salt water, the independent variable is the type of water used (regular water vs. salt water), as it is manipulated by the experimenter. The dependent variable is the boiling point of the water, which is measured to observe how it changes based on the presence of salt. The experiment aims to determine how the addition of salt affects the boiling point of water.
If you are trying to measure how fast an ice cube melts with or without salt added, your Independent variable would be amount of salt added, and your Dependent variable would be the amount of time it takes to melt.
No.
The dependent variable is the rate of salt dissolution in the solution.
The independent variable! =] the dependent variable is what is changed by the independent variable... Eg... And a bad one at that lol... But the affect of salt on the boiling point of water... Salt is independent variable... Dependent is the boiling point =]
An "hypothesis" doesn't have independent and dependent variables until you design an experiment to test it. If you want to test the effect that salt in solution has on the freezing point of the solution, then the independent variable is the presence, absence, or concentration of the salt. The dependent variable is the freezing temperature you measure in each condition.
The concentration of the salt solution, or salinity. It changes as shown in the related link below.
woetso jigdak invented an egg floating in salt water.
If it's for science fair you need a control group, experimental group, and independent variable/dependent variable. I'd suggest what is the effect of salt water on.... whatever it is you like! Materials include: graduated cylinder (measure water equally) water beakers whatever the salt water is testing
The salt water has a greater density and the floating is easier.