The coolest part of the water is on the top of the pot. That's where the water is touching the air. Then obviously the hottest part is at the bottom where the water is closest to the heat source. Since heat makes water evaporate into its gas form, the bubbles are from the heated gaseous water from the bottom, making its way to the top, and out of the pot. If you were able to heat water evenly, or if you could have the heat source coming from above, there would be no bubbles. It would just slowly evaporate from the top as it reaches the right temperature.
Asked in Baking
What baking equipment can tell when water is boiling?
lol wow you dont need a piece of equipment to tell when water is boiling... you just watch the water as it heats up and when it starts to bubble its boiling... Ta -dah! ...
Asked in Chemistry, Cooking Techniques
When is the best time to put salt and meat to the water before boiling or when it is boiling?
It's best to put it in RIGHT BEFORE it's boiling. Time it out right so that when the water is just beginning to bubble, drop it in. ...
Why the process of boiling water is noisey?
At the minute site of the formation of a bubble of boiling, we have some water turning instantaneously to steam. This has a much larger volume than water, and expands VERY rapidly. In this expansion, it forces some water away to make space for the bubble, and it is these forces of expansion, and the reaction to them, that causes the noise. ...
Asked in Pool Care and Cleaning, Physics, Chemistry
What happens when you add table salt to boiling water?
It raises the boiling point of water. It may appear to bubble briskly at first, but when the salt has dissolved the solution will boil only when it has been heated a bit more. ...
How can you get water to boil below 100 degrees?
the boiling of water is depends upon the outer pressure which acting on it, when water starts to boiling, that time bubble(water vapour) is produced and due to density differents it's goes upward. but when the pressure will decreases, that time it's easy to bubble to go upward direction, and its boils at a low temperature(below 100*c). and when the pressure increases that time the bubble need more force to go upward. so............................ ...
Asked in Science
Why does the water bubble up then stop then it starts again just by adding salt?
When you add the salt it increases the boiling point of the water, so bubbling stops until this new solution reaches its boiling point. Adding salt, sugar, or any solute to water raises the boiling point and lowers the freezing point of water. ...
Asked in Science
What happens to boiling water if you increase the pressure?
water boils when the vapour pressure becomes equal to the external pressure. So if we increase the pressure, the rate of boiling will increase. Think of the vapor pressure as the pressure that is needed to force a bubble to the surface. it lowers ...
Asked in Temperature
Which has the higher temperature - boiling water or ice?
Asked in Chemistry
What has more energy a drop of boiling water or a cup of boiling water?
the cup of boiling water.
Asked in Cooking Measurements, Cooking Techniques
For 4 cups of boiling water do you boil 4 cups of water or do you measure water after boiling?
you measure the water before boiling. after boiling would be more tricky.
Asked in Chemistry, Temperature
What is the difference between bubble point and boiling point?
Boiling point is related to the point in which pure substance coexist liquid and vapour ...
Asked in Physics
When it becomes impossible to remove air from a water bubble?
A water bubble is made of air. If you remove the air from it it will not be a bubble anymore. ...
Asked in Chemistry, Cooking Techniques, Temperature
Why should boiling stones be used when boiling liquids?
Boiling chips provide a surface on which vapor bubbles can form. This bubble formation helps prevent superheating and bumping of the liquid. ...
Asked in Chemistry
What causes the bubbles to form when boiling water?
When water boils, it is heating up. The water heats up and will eventually be evaporated (the steam from the water). The bubbles are caused by air floating to the surface and taking the form of a bubble. Then it pops and goes into the air. ...