Aluminum Quiz

What is the most common metal in Earth’s crust?

• Iron

• Copper

• Aluminum

• Gold

Why is aluminum good for making airplanes?

• It is heavier than steel

• It is both strong and lightweight

• It rusts quickly

• It is very expensive

What happens when aluminum comes in contact with air?

• It becomes rusty

• It melts quickly

• It forms a thin layer that protects it from rusting

• It changes color

What mineral is aluminum extracted from?

• Granite

• Quartz

• Bauxite

• Limestone

Why is recycling aluminum cans important?

• It is more fun than making new aluminum

• It uses only 5% of the energy needed to make new aluminum

• It makes the aluminum stronger

• It takes longer than mining bauxite

How much bauxite is mined each year?

• About 50 million tons

• More than 100 million tons

• Around 10 million tons

• Less than 1 million ton

Which of the following is NOT a use for aluminum?

• Airplanes

• Food packaging

• Rusty nails

• Soda cans

What does aluminum foil do for food?

• Makes it taste spicy

• Keeps it warm and fresh

• Changes its color

• Makes it heavier

What is a challenge when separating aluminum from other materials?

• It is very easy to do

• It is expensive and difficult

• It happens naturally in the air

• It makes the aluminum very heavy

What is one reason that making new aluminum is not good for the environment?

• It helps plants grow faster

• It releases greenhouse gases

• It makes the air smell nice

• It uses less energy than recycling