Objectives - Metals and Alloys

Fill in the blank: The primary sources of materials for producing _______ and _______ should be known.

• metals, alloys

• plastics, ceramics

• fibers, textiles

• gases, liquids

Fill in the blank: You should be able to recognise and characterise different types of _______ and _______.

• metals, alloys

• plants, animals

• rocks, minerals

• gases, liquids

Fill in the blank: Understanding how the physical and working properties of a range of _______ and _______ affect their performance is important.

• metals, alloys

• plastics, ceramics

• woods, fabrics

• liquids, gases

The word 'metal' comes from the ancient Greek word '_________' which means to mine, excavate or extract from the ground.

• metallum

• petra

• chroma

• hydor

Prehistoric man used metals to make _______ and weapons.

• tools

• clothes

• paintings

• jewelry

Identify the common metals you would find in a domestic kitchen.

• Aluminum, stainless steel, copper

• Gold, platinum, silver

• Titanium, mercury, lead

• Zinc, tin, nickel

Which of the following statements is true about metallic minerals?

• They are found only in water

• They are found naturally in rock or ore

• They are made artificially in labs

• They are only found in plants

Ore is obtained by ________, and the metals contained within it are extracted.

• mining

• melting

• painting

• freezing

The method used for extraction depends on the metal’s reactivity with which of the following?

• Air, water or acids

• Sunlight

• Electricity

• Pressure

The more reactive the metal, the more expensive it is to extract.

• True

• False