Properties of Matter

Junior Science

What is Matter?Matter is anything that has mass

and occupies space

Properties of Matter

A property is any characteristic that allows us to recognise a particular type of matter and distinguish it

from other forms of matter.

All Matter has both Physical and Chemical Properties

Physical PropertiesPhysical properties are used to identify,

describe and classify matter.

They can be measured without changing the identity or composition of the substance

Colour, Shape, Mass,

Volume

Boiling point,Melting Point,

Density,Weight,

Magnetic

State of Matter, texture, Luster,

Solubility

Ductility (ability to be drawn into a

wire)

Malleability (ability to be pounded into

thin sheets)

Chemical Propertiesdescribe the way a substance may change

or react to form a new a substance or substances.

Chemical Properties

Acidic or Basic?

(Does it cause litmus to change colour)

Reactivity with….

FlammabilityDoes it burn or

catch fire?

Chemical Properties

Combustibility(Does it help other substance to burn?)

Physical Changes

and Chemical

Reactions

Physical Change

A physical change is a change in which no new substance is formed.

During a physical change NO new substance is formed but the original substance can gain new properties.

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Chemical Change

In a chemical change at least one new substance is formed.

When a chemical change takes place we call what happens a Chemical Reaction.

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Physical Change vs. Chemical Reaction

No new substance formed

Easily reversed

Often no heat change occurs

One or more new substances formed

Very difficult or impossible to reverse

Heat releases or taken in

Exothermic and Endothermic Reaction

Exothermic Reaction

chemical reactions that

release energy in the form of

heat, light, or sound.

Endothermic Reaction

Chemical reactions which

require heat to proceed and

take in heat energy from the

environment

Summary• All Matter has both Physical and Chemical

Properties.

• Physical properties are used to identify, describe and classify matter.

• Chemical Properties describe the way a substance may change or react to form a new a substance or substances.

• During a physical change NO new substance is formed but the original substance can gain new properties.

• In a chemical change at least one new substance is formed. When a chemical change takes place we call what happens a Chemical Reaction.