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Changes in State of Matter - 5th Grade

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William Begoyan

on 28 September 2017

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Transcript of Changes in State of Matter - 5th Grade

Three States of Matter
Most matter exists in one of three possible states.
The state depends on two factors:
temperature and pressure.
Particles of Matter
Changes Between States
Freezing
and
Boiling
Point
Changes in State
(pages c14-c18 in textbook)
Questions
Solid:

Definite shape and volume.
Liquid:

Definite volume, but no definite shape.
Gas:

No definite shape or volume.
In a solid, particles are very close together.
They can't be squished any closer.
This is why solids have a definite shape and volume.
In a liquid, particles can move around a little, and are more loosely packed.
This is why you can change the shape of a liquid.
In a gas, particles can move around freely with little to no packing.
They can be squished and moved into any shapes.
As temperature drops, particles move slower.
Eventually the particles take on a solid configuration.
We call this
freezing.
As temperature increases, particles move faster.
Eventually particles move out of the frozen state into a liquid state.
We call this
melting
.
As temperature keeps increasing, particles move even faster.
Eventually the particles move fast enough that they bounce off each other, going into a gas state.
We call this
evaporation
.
As temperature decreases, particles lose speed.
Eventually the particles slow down and move closer together, going into liquid state.
We call this

condensation.
As temperature increases, particles in matter move faster.
At a
certain point
, the particles overcome the pressure applied at them and bounce off each other, and go into the gas state.
This is the
boiling point
, and it is different for every substance.
As temperature decreases, particles in matter move slower.
At a
certain point
, the particles succumb to pressure and stop moving (they still vibrate), and go into the solid state.
This is the
freezing point
, and it is different for every substance.
Plasma
Plasma
is the 4th state of matter.
Plasma
is super heated, ionozed gas.
Plasma
is electromagnetic and complex.
Most matter in the universe is in the
plasma
state.
1. What are the common three stages of matter?
2. Describe the particles in a solid.
3. Describe the particles in a liquid.
4. Describe the particles in a gas.
5. What do we call the change from solid to liquid state?
6. What do we call the change from liquid to gas state?
7. What do we call the change from liquid to solid state?
8. What do we call the change from gas to liquid state?
9. What is the 4th state of matter?
Page 9 in ISN
Homework
On page 8 of your ISN
Using visuals and words, describe the 4 states of matter.
Full transcript