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Have you ever wondered where all this stuff came from?
Well, all this "stuff" is called matter!
Matter is pretty cool! Tell me more about it!
The study of matter and the changes it undergoes is called chemistry...
So what exactly is this?
when h2o (water) goes through a phase change,freezes, it becomes ice! its changes from a liquid to a solid.
so shouldn't we be on ice right now?
well no. the freezing point for water is 0 degrees Celsius and not all water is the same temperature.
well can other liquids change their form as well?
liquids can go through vaporization and freezing!
huh?
vaporization is the process by which a a liquid changes into a gas or vapor...
can these molecules go anywhere?
these molecules can do many things, such as evaporate. But this can only happen at the surface of the liquid.
What about solids?
Crystalline solids have a melting point in which the forces holding its crystal latices together break,
what happens when a gas or vapor becomes a liquid?
Thats called condensation!
can a gas or vapor become a solid without becoming a liquid?
Yes! Indeed! that process is called deposition!
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