Properties of Matter:

Physical and Chemical Property

Chapter 15.2-pages 458-461

What is the composition of matter?

Matter

Pure Matter Substance

Impure Matter Mixture

only 1 set of chemical and

physical properties

Each substance in the mixture retains its own

set of chemical and physical properties

Key Concepts:

Identify a substance by its properties Compare and contrast chemical and

physical properties Identify multiple physical and

chemical properties of common objects

Questions to Ponder:

1. How does matter change chemically or physically?

2. How does matter make up the world around us? And how can it be changed to make new substances?

3. How does an object’s properties help identify what the object is?

Key Vocabulary:

AtomPhysical property

Chemical property

Matter and its properties:

What is an atom?

What are the two characteristics of Mr. W?

All matter is composed of atoms Smallest particle of an element

that still retains the properties of the element ▪ (H, Cl, O)

Matter is identified by its characteristics.

A physical property is any characteristics of a material that you can observe without changing the identity of the substance Peanut? Describe it…

Physical Properties:

What do you notice?

Using your senses…

Examples of physical properties include:1. Appearance

1. Through observation1. Like?

2. Measurements

2. Behaviors1. Magnetism2. Malleability3. Ductility4. Viscosity5. Boiling points/melting points

Examples of Physical Properties Colour Smell Boiling Point Freezing Point Melting Point Density Viscosity Texture Solubility Buoyancy

Mass Volume Length Shape Lustre Hardness Taste State Attraction to

Magnets

SAY WHAT!Try this one

out for size:List 5

physical properties.

Chemical Properties: What does

chemical mean?

What are some examples of chemical and physical changes?

A chemical property is a characteristic of a substance that indicates whether it will undergo a chemical change (become something NEW)

Think ABILITY TO… Flammability Combustibility Bleaching agent Able to rust

Chemical Properties—Recap:

A chemical property is a characteristic that cannot be observed without altering the substance.

You must DO something to it- ability to undergo a change that alters the identity

Examples Ability to burn Ability to change

smell Ability to change

color Ability to give off

gas or bubbles without a temperature change

Ability to rust

http://christinachemblog.blogspot.com/2010/09/chemical-and-physical-properties-of.html

Chemical: Ability to…..

Burn (can you think of

examples?)

Rust

Review:

Summary:

1. How can we describe matter chemically and physically?

2. How does matter make up the world around us? And how can it be changed to make new substances?