Physical and Chemical Properties of Matter

Objective: Students will classify matter by physical and chemical properties and identify changes in matter.

Matter is EVERYWHERE and is found in different forms as solids, liquids and gases.

When we examine a substance, we are interested in its properties. A property is

something about a substance that can help to define it.

Properties can be

both physical and

chemical.

Properties of matter are both

PHYSICAL and CHEMICAL

PHYSICAL PROPERTIES

Physical properties are thing about matter that can be observed without changing the substance into a different substance. There are many different physical properties that can be observed.

H2O

Examples of Physical Properties

Color – Gold

GOLD

Au

Density- 19.32 g/cm3

Metal- STATE (solid, liquid or gas)

GOLD

PHYSICAL PROPERTIES:

PHYSICAL PROPERTIES:

Boiling point- 2807 ° F

Melting point- 1947° F

GOLD

Malleable- Bendable-forms into thin sheet

GOLD

Ductile- stretched into wire

Conductivity- Conducts heat and electricity

PHYSICAL PROPERTIES:

Soluble: to dissolve

(without fizzing or bubbling!)

PHYSICAL PROPERTIES:

Examples of Physical Changes

Size change

Shape change

Examples of Physical ChangesState change Solid liquid gas

When a physical change occurs, the chemical composition of that substance DOES NOT CHANGE?

THE MATTER basically

STAYS THE SAME

Au

Au

Au

CHEMICAL PROPERTIES

Chemical properties are characteristics of a substance that are observed when it REACTS or changes

to produce different

substances.

Iron + Oxygen = Rust

4Fe + 3O2 = 2Fe2O3

Examples of Chemical Properties

Reaction to……..

OXYGEN

WATER

CHEMICALS

REACTION TO……..

LIGHT

REACTION TO ……

Heat Flammability

When matter undergoes a CHEMICAL CHANGE the atoms in the original substance are rearranged and produce

new substances that

are structurally different

than the original matter.

Iron + Oxygen = Rust

4Fe + 3O2 = 2Fe2O3

Signs that matter is undergoing

a chemical change:

FIZZING and BUBBLING

Giving off HEAT/SMOKE

Color CHANGE

• Smell Change

When matter undergoes a CHEMICAL CHANGE, the atoms in the original substance are rearranged and produce new substances that are structurally different than the original matter.

COPPER

***MATTER FORMS A

_________________ SUBSTANCETOTALLY NEW

ReviewPhysical or Chemical Properties of Matter

WARM-UP

Directions: *Number your paper from 1 to 10. *For each item, label it as a physical property (P) or a chemical property (C).

Physical or Chemical Property?1. Flammability

Physical or Chemical Property?2. Malleability

Physical or Chemical Property?3. Melting and Boiling Point

Physical or Chemical Property?4. Oxidation (Rusting)

Physical or Chemical Property?5. Conductivity

Physical or Chemical Property?6. Dissolving without temperature

change. No bubbling or Fizzing…

Physical or Chemical Property?7. Dissolving with a temperature change.

Fizzing and bubbling….smell release.

Chemical or Physical Property?8. Oxidation (Tarnishing)

No Tarnish

Tarnished

Physical or Chemical Property?9. A totally new substance is formed.

Physical or Chemical Property?10. The substance remains the SAME…..

Now….Check your answers!

Chemical Property

1. Flammability

Physical Property

2. Malleability

Physical Property

3. Melting and Boiling Point

Chemical Property

4. Oxidation (Rusting)

Physical Property

5. Conductivity

Physical Property

6. Dissolving without temperature change. No bubbling or Fizzing…

Chemical Property

7. Dissolving with a temperature change.

Fizzing and bubbling….smell release.

8. Oxidation (Tarnishing)

No Tarnish

Tarnished

Chemical Property

When a physical change occurs, the chemical composition of that substance DOES NOT CHANGE!

THE MATTER STAYS THE SAME!

H2O

Chemical Property

9. A totally new substance is formed.

Physical Property

10. The substance remains the SAME…..