Matter:

Properties of Matter:

• What is Matter?

• Matter is defined as anything that

has mass and takes up space.

• Can you give an example of matter??

Mass:

• How do you define mass?

– The amount of matter an object has.

• Which has a greater mass, a tennis

ball or bowling ball?

•Which has more matter?

Mass vs. Weight• Is your mass the same on moon as it

is on the Earth?

• Is your weight the same on moon as

it is on the Earth?

–What is the difference between mass

and weight?

Substance:

• Matter must have uniform composition

• Matter must have definite composition

• All samples of a substance must have

identical physical properties

• Pure substances contain only one

type of matter

Physical Properties

• A condition of a substance that can

be observed or measured without

changing a substances chemical

composition.

Physical Properties

• What are some words that indicate

physical properties?

• Solubility, density, melting point,

boiling point, color, odor

What are the three states of matter?

• Solid

• Liquid

• Gas

Solids:

• Matter that has definite shape and

volume

• Expand slightly

• Incompressible

Liquids:

• Fixed volume

• Takes shape of their container

• Can flow

• Incompressible

• Expand when heated

Gas:

• Takes shape and volume of its

container

• Easily compressed

• Flow

• Particles are spaced far apart

Can you tell the difference?

How would you describe the state of this …?

Vapor:

• Gas of a substance that is a liquid at

room temperature

• Example: steam(water vapor)- liquid

(water) at room temperature

Plasma• Another state of matter

• Can be created by heating a gass

• Made up of positively and

negatively charged particles

• Neon lights, welding arcs, lighting,

stars

Physical Change:

• Changing of a substance with out

altering its composition

Words that describe physical change:

• Cutting, grinding, bending, melting,

freezing, boiling , dissolving

Mixtures: • A physical blend of two or more

substances

Types of mixtures:

• 1)Heterogeneous mixtures:

–Mixtures that are not uniform in composition

– Example: salad

• 2)homogeneous mixtures:

–Mixtures that are uniform in composition

– Salt water, milk

Solutions:

• Solutions are homogeneous mixtures

• May be solids, liquids or gases

Phase:

• Any part of a system with uniform

composition

• Heterogeneous mixtures have two or

more phases

• Homogeneous mixtures have one

phase

Separation of mixtures:

• Some substances can be separated by

physical methods

• Distillation

• Evaporation

• Density

• Magnetism

Heterogeneous or Homogeneous:

• 1. Salad

• 2. soda

• 3. milk

• 4. Trail mix

• 5. Orange juice with pulp

• 6. Salt water