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Welcome to the Materials Quiz (ages 11 12) Understanding Materials

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Q1:Which of these is a physical change?

Burning paperMelting iceRusting iron

Q2:Which is an example of a solution?

Oil and waterSand and waterSalt and water

Q3:Evaporation is when:

Gas turns into liquidLiquid turns into gasSolid turns into liquid

Q4:What is rusting?

Burning of ironReaction of iron with oxygen and waterMelting of iron

Q5:What is a mixture?

A substance made of one elementA substance made by combining two or more different materialsA pure compound

Q6:Which of the following is not a metal?

PlasticCopperAluminium

Q7:Why is plastic used for electrical wires?

It is heavyIt conducts electricityIt is flexible and an insulator

Q8:What happens when salt dissolves in water?

It disappears completelyIt forms a solutionIt reacts with water

Q9:What is filtration used for?

To mix substancesTo separate liquidsTo separate solids from liquids

Q10:What tool can separate sand from water?

Filter paperEvaporation dishMagnet

Q11:Which property describes how well a material lets heat pass through?

FlexibilityDensityConductivity

Q12:What is condensation?

Water turning into vaporIce turning into waterVapor turning into liquid