Properties and Metals

Give 2 properties of metals that is not true

• Insulators and Conductors of heat
• Conductors of heat and malleable
• Conductors of Electricity and Flexible
• Conductors of heat and electricity

Which 3 metals are magnetic?

• Nickle, Chromium and gold
• Iron, nickle and copper
• Lead, tin and Silver
• Iron, Nickle and Cobalt

What two conditions make iron rust

• Water only
• air only
• water and air
• Hydrochloric acid

suggest two ways to protect against rusting

• Use a dehumidifier and Galvanise 
• Use a dehumidifier and spray with water
• Place the metal in a vacuum 
• Add lots of oil to the edge and paint over

What metal is commonly used in Galvanising

• Aluminium
• Zinc
• Tin
• Cobalt

What element in air reacts with Iron to make Iron Oxide

• Carbon
• Oxigen
• Oxygen
• Nitrogen

Which metal is commonly used when weight is a concern

• Steel
• Iron
• Aluminium
• Tin

what is a common use for copper

• making jewelry
• making ships
• making pipes
• making radiators

Why is steel often used in industry?

• It is cheap and flexible
• It is cheap and strong
• It is brittle and hard
• It is strong and magnetic

Which metal is the most reactive?

• Copper
• Iron
• Calcium 
• Nickle