Ceramics

Ceramics

Multiple Choice

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy or reaction

• by making them more available

• by giving them more energy

Multiple Choice

What is the name given to a catalyst in the human body?

• biocatalyst

• catalyst

• chemical

• Enzyme

Multiple Choice

A substance that increases the rate of a reaction without being used up during the reaction is called a

• catalyst

• product

• reactant

• solute

Open Ended

How many things have you used today that are ceramics?

Different uses of ceramics

• Refractory uses: linings of furnaces, gas-fire linings, steel making crucibles

• Structural uses: roofing tiles, floor tiles, pipes and bricks

• Whiteware: tableware, cookware, wall tiles, toilets, basins and baths (made from eathernware, stoneware, porcelain or fine china clay ceramic)

Open Ended

Properties of ceramics

Multiple Choice

How are ceramic materials made?

• By heating and cooling a substance

• By adding many small molecules together

• By electricity

Multiple Choice

Which of the following is a typical use for a ceramic?

• Car

• Bathroom sink

• Clothing

Multiple Choice

What type of material is a house brick?

• Glass

• Ceramic

• Clay

Multiple Choice

What is a disadvantage of ceramics?

• Ceramics are tough. 
• Clay is easy to obtain.
• They can be painted.
• They can fracture easily.

Multiple Choice

Ceramics also have a chemical inertness. What does this mean?

• They do not react with chemicals.
• They react strongly with chemicals.
• They only react with reactive elements.
• They react sometimes with chemicals.

Multiple Choice

Which of these properties do ceramics possess?

• Light
• Very fragile
• Strong hardness
• Flexible

HOMEWORK

• PAGE 95

• Question 3 and 4 a and b.