Matter Matter: anything that takes up space and

has mass

Can you think of anything that is not made of matter?

Energy- which is a property of matter!!

Matter is made up of moving particles!

Instead of using the word moving, we use the kinetic because it is a science word for movement!

We have 1 main Theory for this unit! And we call it : The Kinetic Theory of Matter! The theory states that All matter

is made of tiny constantly moving particles.

This is because all matter is made of moving particles. The motion of the particles controls what the matter looks

like!

Matter looks like 4 different things, and we

call them

States of Matter

Here are the 4 States of Matter we will discuss this unit

1.Solid 2.Liquid 3.Gas 4.Plasma

Kinetic Theory of Matter

Matter will become any or

sometimes all of these

States because they are

controlled by temperature

Temperature A physical property of matter that determines how much heat energy an object can contain. An example of this energy is how hot or cold an object can become.

Lets begin with… Solids Definite shape and volume

“Slow” vibration of particles

The bonded particles vibrate within the substance but lack enough energy to break free

There are 2 types of solids:

1. Crystalline 2. Amorphous

Solids Crystals: a solid whose particles are arranged in repeating geometric patterns

Solids Amorphous solids Particles do not have a repeating pattern

State of Matter:

Liquids No definite shape: takes the shape of its container Definite volume “Medium” vibration of particles The particles have enough energy to break the bonds holding them together, not enough energy to escape from each other

Liquids The particles of a liquid can move pass one another in a process called flow or pour (flow can be any direction while pour is under the influence of gravity)

There is 1 main principal you need to remember about liquids:

* Archimedes’ principle: The buoyancy force on an object in a

fluid is equal to the weight of the fluid displaced by the object

Buoyancy is the ability of a fluid to exert an upward force on an object immersed in it

Bill Nye: Buoyancy

State of Matter: Gases

No definite shape (takes the shape of its container) or volume (the particles can expand and contract to fill the space available)

“Fast” vibration of particles The particles have enough energy to separate completely from one another

State of Matter: Plasma

Is a super heated gas of positive & negative particles

When the molecules are traveling so fast, they begin to break apart and electrons become stripped from their atoms.

This is called ionization The fastest movement of particles & is the MOST common form in the universe!

Pressure: is a force

that can influence all states of matter!

Is caused by particles colliding with their environment or each other

It is measured in units

of Pascal (Pa): Equal to

1 newton per square meter (1 N = force needed to move 1 kg 1m/sec/sec)

Solid Liquid Gas

http://www.harcourtschool.com/activity/states_of_matter/

http://www.bgfl.org/bgfl/15.cfm?s=15&m=430&p=247,index

All matter changes into a new state, but there are names for each change and we call them a change Of phase.

Plasma Ionization

deionization

The phase from…. Liquid to Gas: Evaporation

Takes place below the boiling point of the liquid

The phase from…. Solid to Liquid: Melting

•Requires energy to break the physical bonds holding the particles together, this energy is called heat of fusion

The phase from….

Liquid to Gas: Vaporization Taking in Energy Takes place above the boiling point of the liquid

In order for the phase from Liquid

to Gas to occur energy is needed

to make the particles separate,

we call this heat of vaporization

The phase from….

Gas to Liquid: Condensation

Releases energy (heat of vaporization)

The same amount of energy is required to change from a liquid to a gas

The phase from…. Liquid to Solid:

Solidification (freezing)

Releases energy (heat of

fusion), the same amount of energy required to change from a solid to a liquid

(the heat of fusion in reverse)

The phase from….

Solid to Gas or Gas to Solid: Sublimation

A solid changes directly

to a gas without going through the liquid state

A gas changes directly to a solid without going through the liquid state

Heat of vaporization

• Energy to overcome attractive forces of cohesion and/or adhesion which holds the particles close together thus allowing them to completely separate from each other forming a gas

The behavior of attraction between molecules is determined by a change in temperature.

Molecules are held together by:

1.Cohesion

2.Adhesion

Cohesion is the attraction between the same kind of particles

Adhesion is the attraction between different kinds of particles

fun facts!!

BEC (Bose-Einstein Condensate): State (phase) of matter obtained when atoms are super-cooled until they condense into “super-atoms” which then behave like waves “Slowest” vibration of particles (within a few billionths of a degree above absolute zero)