States Of Matter
By: Suneet
What is matter? How do we weigh it?
Matter is everything around you. It’s anything that has mass and takes up space. Matter is sometimes related to light and radiation and is also found in a few forms even if all over the universe. Matter can change from one state to another also known as "physical changes" or "chemical changes". It can be reversed so it can turn back into it's original shape!
We can measure it in mass or volume .Mass measures how much there is of the object. Volume measures amount of space in a object, example: if something takes up small amount of space that means that there is a small amount of volume in the object. There are more ways to weigh matter but volume and mass are the most known!
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The states of matter
Solids
Liquid
Liquid: A liquid is a matter that fills the shape of any container it is in. If you pour water in a cup, it will fill up the bottom of the cup first and then it will fill the rest. The top of a liquid will usually have a flat surface. That flat surface is the cause of gravity pulling on the liquid itself. Another cool thing about liquids is that they are difficult to compress. When you compress something, you take a specific material and force it into a smaller space or volume.
Gases
Plasma {A state related to gas, but the first 3 are most known}
How do the particles move?
5 Changes of states in matter
In this diagram it’s showing all of the physical changes of how a solid changes into gas, gas changes into liquid, liquid changes into solid and vice versa.
Evaporation=When a liquid turns into a gas {mist}
Condensation=Water that collects drops on a cold surface when humidity is in contact with it.
Sublimation=A transition going from a solid to a gas without going through the liquid phase
Freezing=A liquid hardens while being cooled {ice}
Melting=When a solid turns into a liquid while being heated {water}
Deposition=When a gas turns into a solid. It is technically the opposite of sublimation
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A Physical change OR a Chemical change
Physical change: It is change occurred to an object. It looks different but it didn’t change the substance of itself. So if there was no reaction to the object that would mean that that change was a physical change. A substance that has had a physical change could change back to it’s original shape if another physical change had occurred. The physical change didn’t occur a Chemical Change in the substance because it didn’t react itself. Remember! Anything that has to do with water is always a physical change!
Chemical Changes: It is a change that reacts itself. So if you put wood into fire then it will
burn, all you did was throw wood into the fire and the fire was the one that had burnt it. You can not reverse a chemical change. It is so because all of the atoms in the substance change into something completely new.