The Elements: Aluminium

The Elements: Aluminium

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Science, Engineering, Chemistry

6th - 12th Grade

Hard

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Aluminium is highly reactive and does not occur naturally in pure form. It is found in compounds like alum and alumina. Initially, aluminium was more valuable than gold due to the difficulty and cost of extraction. New methods have reduced costs, making aluminium widely used in alloys for construction and aerospace. Aluminium is also used in packaging. It can be recycled indefinitely, requiring 95% less energy than new extraction, with 75% of all extracted aluminium still in use today.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why was pure aluminium once considered more valuable than gold?

It had unique properties.

It was difficult and expensive to isolate.

It was more abundant.

It was used in jewelry.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes aluminium alloys particularly useful in construction and aerospace?

They are lightweight and strong.

They are heavy and strong.

They are cheap and durable.

They are resistant to corrosion.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a common use of aluminium in packaging?

Cardboard boxes

Foils and drink cans

Glass jars

Plastic bottles

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much less energy does recycling aluminium require compared to extracting new aluminium?

50% less

95% less

100% less

75% less

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of all aluminium ever extracted is still in use today?

50%

60%

70%

75%