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3 States of Matter for Kids (Solid, Liquid, Gas): Science for Children - FreeSchool - YouTube
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Do you know what water, air, and rocks all
have in common?
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They are made of matter!
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Matter is someting that takes up space. Now,
you might be wondering why they all look so
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different if they are made of the same thing,
but the truth is that EVERYTHING around you
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is made of matter, just in different shapes
and forms. Matter is made of tiny particles
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called atoms.
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Matter can be grouped into three main states:
solid, liquid, or gas. To figure out which
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state of matter something is in, we need to
examine its properties. A property is the
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way that something is, that we can measure.The
physical properties we will look at to determine
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state of matter are shape, mass, and volume.
Mass is the amount of matter in an object.
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Volume is how much space that matter takes
up.
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Solids are easy to recognize. Rocks, apples,
pencils, and plants are all examples of solid
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objects. A solid object has a definite shape
that doesn't change when you move it or put
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it in a container. They also have a consistent
mass and volume. This is because the atoms
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in a solid object are packed closely together
so they do not move around. A solid will change
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shape only if forced, for instance, if it
is broken or smashed.
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If you look around, you can find many examples
of solid objects.
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Liquid is the next state of matter. Liquids
have a definite volume and mass, but they
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do not have a definite shape. The atoms in
liquid are still close together, but unlike
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the atoms in a solid, they can move around.
This allows the matter in a liquid to flow.
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Because liquids don't have their own shape,
they take their shape from their containers.
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The same amount of liquid may look very different
in a glass and spilled on the floor.
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You can find examples of liquids around you,
too. Water, milk, and juice are just some
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of the liquids you might find.
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The third state of matter is gas. Gasses have
a definite mass, but they do not have a definite
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shape or volume. Like liquids, gasses take
the shape of their containers. Unlike liquids,
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gasses will spread out to completely fill
the container they are in. If a gas is not
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in a container, it will keep spreading out
indefinitely. This is because the atoms in
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a gas are farther apart than atoms in a solid
or a liquid, and so they can move freely.
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The air you breathe is an example of a gas.
You might have noticed that you can't really
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see air. Often gasses are invisible - but
they are still there. There are many different
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types of gasses in earth's atmosphere, like
oxygen, nitrogen, carbon dioxide, helium,
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and water vapor.
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Sometimes matter can change from one state
to another. Water is a very good example of
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this. When water is frozen into ice, it is
a solid. When it melts back into water, it
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is a liquid. When water evaporates into water
vapor, it becomes a gas.
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Matter in all its states is everywhere. See
if you can find solids, liquids, and gasses
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around you!
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