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Welcome to the Materials Quiz (ages 13 14) Advanced Study Of Materials

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Q1:Why are ceramics brittle?

They are made from metalsThey have strong but rigid bondsThey are soft and bend easily

Q2:What is the difference between physical and chemical changes?

Chemical changes form new substances, physical changes do notPhysical changes form new substances, chemical changes do notThey are the same thing

Q3:Which method is best to separate salt from seawater?

DistillationChromatographyFiltration

Q4:How can rusting be prevented?

By freezing the metalBy heating the metalBy painting or galvanizing

Q5:Why is copper used in electrical wiring?

It's a good insulatorIt’s an excellent conductor and ductileIt’s cheap and colorful

Q6:Why are polymers used in packaging?

They are durable and lightweightThey are strong and biodegradableThey are made of metal

Q7:Which of these is an example of a composite material?

FiberglassPlasticSteel

Q8:What does malleable mean?

Can be burntCan be hammered into shapeCan be dissolved

Q9:What is electrolysis used for?

Separating metals from oresMeasuring temperatureHeating substances

Q10:What does 'reactivity series' refer to?

The melting points of metalsThe arrangement of metals by their colorThe order of metals by how they react

Q11:What is an alloy?

A non-metal elementA pure metalA mixture of two or more metals

Q12:Which gas is released when acids react with metals?

OxygenCarbon dioxideHydrogen