What you need to know:

What is a metal?

What are the physical properties of metals?

Why are metals useful?

Metals Revision

To Do:

Make a list of as many metals as possible

To Do:

Complete the Properties of Metals worksheet

All metals are shiny when polished or freshly cut

Metals do not break – they bend

Metals can be drawn into wires

Metals can be hammered into sheets

Metals ring like a bell when hit - they do not make a dull thud

All metals conduct electricity

Metals allow energy to flow through them, causing heating

Lustrous

Flexible

Ductile

Malleable

Sonorous

Electrical conductor

Thermal conductor

Which of the following are NOT properties of most metals?

strong magnetic high melting point

brittle hard

C

A

B

D

Which is the odd one out?

Copper is non-magnetic – iron, cobalt and nickel

are magnetic

Iron Cobalt Copper

Nickel

C

D

Which is the odd one out?

A

Antimony

B

Palladium Arsenic

Graphite

Palladium is the only metal – the others are

non-metals

D

A

C

Which is the odd one out?

Titanium

Mercury

Iridium

BAluminium

Mercury is liquid at room temperature – the others

are solids at room temperature

A

Which is the odd one out?

Aluminium

B

Bronze

CElectrum

DBrass

Aluminium is an element – the others are mixtures of two or more elements

CA B

D

Which is the odd one out?

Calcium is in Group 2 – the others are in Group 1

of the Periodic Table

Sodium Potassium Calcium

Lithium

C

D

Which is the odd one out?

A

Silver

B

Tin Copper

Gold

Tin is only found as a compound – the others often occur naturally as elements

D

A

C

Which is the odd one out?

Good Thermal Conductor

Magnetic

Sonorous

B

Malleable

Only cobalt, nickel and iron are magnetic – the others

are properties of most metallic elements

A

Which is the odd one out?

Selenium

B

Calcium

C

Palladium

Zinc

Selenium is a non-metal – the others are metals

D

C

D

Which is the odd one out?

A

Iron

B

Thallium Zinc

Magnesium

Thallium is extremely toxic – you need small quantities of

the others in your diet to remain healthy

C

Which is the odd one out?

AMolybdenum

B

Copper Yttrium

Tungsten

Copper has been known since ancient times – the

others were discovered in the 18th Century

D

Complete the exercise on the Using Metals worksheet in your exercise book

Write in full sentences

1. Saucepans are made of copper, iron, steel

or aluminium

Metals are good thermal conductors

Most metals have high melting points

2. Electrical wires are made of copper

Metals are good electrical conductors

Most metals are ductile...... they can be drawn out into

wires

Most metals are flexible

3. Springs are usually made of steel (an alloy of iron)

Most metals are flexible

4. A lot of jewellery is made of gold

Metals are lustrous...

... shiny when polished or freshly cut

Most metals are ductile

Most metals are malleable...

... they can be beaten flat into sheets

5. Bells are made of bronze (an alloy of copper

and tin) or brass (an alloy of copper and zinc)

Most metals are sonorous...

... they ring when hit, rather than make a dull thud

6. The framework of skyscrapers is made of

iron or steel girders

Most metals are strong

Because metals are flexible, buildings with a metal frame have some ‘give’ in them...

... meaning that they survive better during earthquakes

Iron and steel are much lighter than brick or stone so metal-framed buildings can be taller than masonry buildings

7. The filament in light bulbs

is made of tungsten

Metals are good electrical conductors

Most metals have a high melting point

(The filament glows because it gets very hot – 2000 to 3000 ˚C)

8. Saw blades are made of

steel

Most metals are hard

The harder the blade is, the less quickly it goes blunt

9. Flashing – the joins on roofs are waterproofed with sheets of lead

Most metals are malleable...

... so the lead flashing can be moulded to the contours of the roof

10. The casing on compasses is made of brass or aluminium

Most metals are NOT magnetic

Only iron, nickel and cobalt (and their alloys) are magnetic

If we made the casing of a compass from a magnetic metal it would shield the compass needle from the Earth’s magnetic field...... so the compass would not work!

Copy and complete the notes below, filling in the blanks

There 92 naturally occurring elements in the _______ Table:the majority of these elements are ______

The metals are found on the _____ and the centre of the Periodic Table

Metals share many _________ and chemical properties

_______ is the only metal which is liquid at room temperature

Iron, nickel and ______ are the only elements which are ________

Periodicmetals

left

physical

Mercury

cobaltmagnetic

What you need to know:

What is a metal?

What are the physical properties of metals?

Why are metals useful?