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States of Matter
Transcript of States of Matter
In gases, the atoms are spread apart and moving around rapidly, that is why gases fill the container they are in.
In liquids, the atoms are more loosely arranged, that is why they have a fluid motion.
In solids, particles vibrate back and forth, but do not move about freely. The closeness of the particles and the small forces of attraction between them keep the particles from moving from place to place.
Solids have a definite volume, they take up the same amount of space unless you remove part of the object. Some objects might appear to change shape, but it is the air inside or around them that changes shape.
Solids are a form of matter that have a definite shape and volume. Solids keep their shape when moved from one container to another.
Like solids, liquids have a definite volume. You can't make 8oz of OJ fill a 10oz glass. When you pour the same amount of liquid into three different containers, they all appear different despite being the same amounts.
What shape is orange juice? You can't say, because it's a liquid which has no definite shape. Liquids change shape to fit their container. This is because the atoms are not held in place like a solid, they are far enough apart to flow past one another
Forms of Matter
States of Matter
The difference between the states of matter is how far apart the atoms are. Water, for example, can exist as a solid, liquid, or gas. We can change the distance of the atoms, and therefore their state, using temperature.
have no definite shape or volume
The particles are spread apart and can move about freely
When gas is placed in a closed container, it spreads out, filling the container and takes its shape
unlike solids and liquids, gases are very compressible. Their particles are so far apart, you can push the particles together. This is what happens when we store gases like helium and propane for our use.
Are fast moving
Gases have much lower densities than solids or liquids. That is why balloons float.