MATTER

All matter has 2 types of

properties: Physical

properties and chemical

properties.

PHYSICAL PROPERTIES

Definition: Can be observed without changing the substance into another substance. • Color• Shape• Odor• Density• Melting/Boiling

Point• Malleability• Elasticity

CHEMICAL PROPERTIES

Definition: Indicates how a substance reacts with something else; the substance is chemically changed when observing it.• Combustibility• Flammability• Ability to rust• Reacts with a base to

form water

• The ability to burn

• Ability to tarnish• Ability to rust• Ability to

decompose• Ability to react

with other chemicals

• Instability• Ability to do

acid/base reactions

Examples of chemical properties include:

GRAPHIC ORGANIZERS

Graphic organizers are visual representations of knowledge,

concepts or ideas.

Chemical Properties

Flammability

Combustibility

React with a BASE to form

water

Ability to rust

CHEMICAL CHANGE

When pure substances mix and change into entirely new/different substances. Color change Heat or light is given off Gas Production (not from

boiling) (ex: fizzing) Odor change Precipitate (e.g. powder)

forms Usually irreversible Energy Change (usually

seen as a temperature change)

Chemical Change

Color change

Heat or light is given off

Gas production (not from boiling)

Odor changePrecipitate forms (ex: powder)

Usually irreversible

Energy change (raise or

lower temp.)

WHICH CLUE(S) TELLS YOU THESE ARE CHEMICAL CHANGES?

Examples:

1.Bleaching hair

2.Frying an egg

3.Fireworks exploding

1.

2.

3.

PHYSICAL PROPERTIES OF SUBSTANCES

Definition: Can be observed without changing the substance into another substance. ColorShapeOdorDensityMelting/Boiling PointMalleabilityElasticity

Physical Properties

Color

Malleability

Shape

ElasticityOdor

Density

Melting/Boiling Points

PHYSICAL CHANGE

Definition: A change in which matter changes form, but does not change composition. (an appearance change only) Change state (solid, liquid,

gas) Shape changes (crinkling,

tearing) Size changes (crushing,

smashing) No color change (except

when dye added) Dissolving

Physical Change

Change in state

(solid, liquid, gas)

Shape changes

(crinkling, tearing)

Size changes

(crushing, smashing)

Dissolving

WHICH CLUE(S) TELLS YOU THESE ARE PHYSICAL CHANGES?

Examples:

1.Glass breaking

2.Butter melting

3.Chopping wood

1.

2.

3.

CHECK FOR UNDERSTANDING

Given the particle diagram to the RIGHT representing four molecules of a substance:Which particle diagram best represents this same substance after a physical change has taken place? A chemical change?

Hint: How do we know that a chemical change has taken place?

METALS VS. NONMETALS COMPARISON CHART

Metals Non-MetalsShiny Dull (not shiny)

Malleable/bendableBrittle/fragile/

breakable

Conducts electricityNot a conductor of

electricity

Reacts with acid No reaction with acid

Usually solid at room temperature

Can be solid, liquid, or gas at room temperature

Independent practice

EXIT SLIP

1. Which statement describes a Physical Property that can be used to distinguish between compound A and compound B?a) A rusts after 10 minutes, and B rust after 30 daysb) A does not corrode in acid, and B does corrode in acid.c) A takes 30 kilojoules of energy to combust, and B has a takes 100 kilojoules of energy to combust.d) A is a blue solid, and B is a white solid.

EXIT SLIP

2. Which statement describes a Chemical Property of Sodium?a) Sodium has a melting point of 97 ⁰C.b) Solid sodium is white.c) Sodium combusts when introduced to water.d) Solid sodium has a crystal lattice structure.

EXIT SLIP

3. The table below depicts the property of matter along with a descriptive characteristic. Which of the following are correctly paired?

Scenario Property

A Baking soda and vinegar bubble and fizz when combined Physical

BA solid forms when liquid lithium bromide and liquid silver nitrate mix

Chemical

C A bicycle chain left outside for a year rusted Physical

D The density of water is 1 g/cm3 Chemical

EXIT SLIP

4. Which of the following rows reflect properties of a metal?

1. Breaks easily

2. Reacts with an acid

3. Dull in appearance

4. Does not conduct electricity

HOME LEARNING

Complete any class activities that were not completed during class.