CONDENSATION???
A phase change, from liquid to gas.
The steam when cooled changes back to liquid water. A chemical change is usually not so reversible.
A beaker of water heated over a laboratory burner is an example of convection. The molecules at the bottom of the beaker begin to rise to the top and the cooler particles sink. This allows for the transfer of heat.
An example of cooling matter changing its state is when water vapor condenses into liquid water at lower temperatures, such as when steam from a kettle turns back into water droplets on a cold surface.
Water boiling to become steam is an example of a liquid to gas phase change.
It may change its measurable properties but a simple state change is brought on by an increase or decrease the energy content of the material and does not alter the material from one material to another.
Water boiling to become steam is an example of a liquid to gas phase change.
Steam changing to liquid water is an example of condensation, which is the process of a gas turning into a liquid. This occurs when the temperature of the gas decreases to the point where it can no longer maintain its gaseous state and transforms into a liquid.
The steam when cooled changes back to liquid water. A chemical change is usually not so reversible.
The change of water to steam is a physical change, not a chemical change. In this case, the water molecules are simply changing phase from a liquid to a gas, but the chemical composition of water remains the same.
An example of a change of state is an ice cube melting and becoming liquid water, or liquid water boiling to become steam.
Boiling (or freezing) water (the change to steam or ice).
A beaker of water heated over a laboratory burner is an example of convection. The molecules at the bottom of the beaker begin to rise to the top and the cooler particles sink. This allows for the transfer of heat.
A good example of a simple Physical Change occurs in a tea pot. The hot, liquid water boils and goes off as steam. Steam is still water (no chemical change,) but is now a gas.
An example of a change of state is an ice cube melting and becoming liquid water, or liquid water boiling to become steam.
An example of cooling matter changing its state is when water vapor condenses into liquid water at lower temperatures, such as when steam from a kettle turns back into water droplets on a cold surface.
It is a physical change because it's still a form of water just a different state.
evaporation