AIM: What are the phases of matter?

Identify the three basic phases of matter

AIM: What are the phases of matter?

Vocabulary: Solid, liquid, gas,

What are the 4 properties of matter? Mass, volume, weight and density

What are the 3 primary phases of matter?Solid, liquid, gas

What is the fourth phase?Plasma?

AIM

: What are the phases of m

atter?

What is a solid?

Definition:

has definite shape and volume

Name some examples of solids!

AIM

: What are the phases of m

atter?

What is a liquid?

Definition:

•has definite volume, but not shape

•takes the shape of its container

•Name some examples of liquids!

AIM

: What are the phases of m

atter?

What is a liquid?

Teacher Demonstration:

•Make an observation of how this liquid changes shape•Why does this liquid change shape•What causes this liquid to change shape?

What is a gas?

Definition:

A gas has NEITHER definite volume, nor definite shape. Its volume depends on its container, if it has one AND if the container is closed!

Example: What happen to the helium in a balloon after it bursts?

•Name some examples of gases!

AIM

: What are the phases of m

atter?

What is solid water made up of? Molecules of Hydrogen & Oxygen

What is liquid water made up of?Molecules of Hydrogen & Oxygen

What is water gas made up of?Molecules of Hydrogen & Oxygen

AIM

: What are the phases of m

atter?

QUESTION:

If a solid, and a liquid, and a gas are all made up of the same Molecules …then how do we get different phases of matter?

It depends upon how much energy the molecules contain in each phase!

AIM

: What are the phases of m

atter?

View the next few slides:

TRY to draw them in your notebook!

Note: Holt O/H #206

Solid liquid gas

Note: Holt O/H #206

Describe the molecules of the solid!

Solid liquid gas

Note: Holt O/H #206

Describe the molecules of the liquid!

Solid liquid gas

Note: Holt O/H #206

Describe the molecules of the gas!

Solid liquid gas

AIM

: What are the phases of m

atter?

SOLIDS:

have less energy

the particle vibrate --- but are very close together

AIM

: What are the phases of m

atter?

What is a solid?

IN a solid, the particles of matter are tightly packed together.

The particles cannot change position easily.

The particles only vibrate back and forth in the same position.

AIM

: What are the phases of m

atter?

LIQUIDS:

have a little more energy

the particle vibrate a little more --- therefore the substance does not have a definite shape

AIM

: What are the phases of m

atter?

What is a liquid?

Liquids are able to change shape, because the particles of the liquid are not in fixed positions.

The particles vibrate more then the particles of a solid.

AIM

: What are the phases of m

atter?

GAS:

have the most energy

the particle vibrate a lot --- therefore the substance does not have a definite shape nor a definite volume

AIM

: What are the phases of m

atter?

GAS:

have the most energy

the more energy (heat), the more it vibrates, the more spread apart it becomes

What is a gas?

Definition:

The particles of a gas are in constant motion.

The particles of a gas are much further spread apart than in a solid or a liquid

AIM

: What are the phases of m

atter?

Dynamic version of Molecular Energy

AIM

: What are the phases of m

atter?

Dynamic version of Molecular Energy

AIM

: What are the phases of m

atter?

The energy of a molecule:

Is also called its kinetic energy.

Which type of molecule has the most kinetic energy? (solid, liquid, or gas)

Which type of molecule has the least kinetic energy?

skip

AIM

: What are the phases of m

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What happens when you add heat energy to a solid?

AIM

: What are the phases of m

atter?

What happens to the molecules of the solid?

How would you describe its kinetic energy?

What happens when you add heat energy to a solid?

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: What are the phases of m

atter?

What happens when you add heat energy to a liquid?

AIM

: What are the phases of m

atter?

What happens to the molecules of the liquid?

How would you describe its change in kinetic energy?

What happens when you add heat energy to a liquid?

AIM

: What are the phases of m

atter?

What happens if you remove the energy from the liquid?

AIM

: What are the phases of m

atter?

The liquid turns to a solid.

The kinetic energy slows down

The particles get closer together

Can you really do that?

AIM

: What are the phases of m

atter?

I

C

E

Energy and States of Matter

STATE Kinetic Energy

Particle Movement

Solid

Liquid

Gas

increases decreases

AIM

: What are the phases of m

atter?

What happens if you remove the energy from the gas?

AIM

: What are the phases of m

atter?

The gas turns into a liquid

How would you describe the change in Kinetic Energy?

How would you describe the change in vibration of the molecules?

AIM

: What are the phases of m

atter?

Identify the three basic phases of matter

AIM

: What are the phases of m

atter?

Worksheet Concepts 12-2

Homework:

INTERNET QUESTIONS

FINISH WORKSHEET

AIM

: What are the properties of m

atter?

AIM

: What are the phases of m

atter?

What is a gas?

Question?

•How does temperature affect the volume of a gas?

•Hint: How does a very cold basketball bounce?

AIM

: What are the phases of m

atter?

What is a gas?

Question?

•How does temperature affect the volume of a gas?

•Hint: What happens to a deflated helium balloon if you heat it up with a blow dryer?