Metals, alloys & uses, extraction

Brass is an alloy of which two metals?

• Copper

• Iron

• Aluminium

• Zinc

Which of these metals would rust easily?

• Cast Iron

• Low-Carbon Steel

• Zinc

• Copper

Steel is a ferrous metal composed of which two elements?

• Iron

• Hydrogen

• Zinc

• Carbon

What is added to iron in stainless steel to prevent corrosion?

• Chromium

• Zinc

• Aluminium

• Copper

Select the properties of copper.

• Good conductor

• Welds easily

• Does not corrode

• Rusts easily

Iron can be extracted from iron ore by using a blast furnace and the process of smelting

• True

• False

Ferrous metals contain iron and never rust

• True

• False

What type of substance is stainless steel

• Metal

• Alloy

• Giant Ionic

• Molecular

What is electrostatic forces of attraction

• Attraction between positive and negative charges

• Movement of electrons

• Ions able to slide

• The force between the N and S poles of magnets

Why are metals malleable

• Metal ions exist in layers

• Layers of metal ions are able to slide

• Electrons are able to move freely through the structure

• Opposite charges attract