Palestinians in West Bank march in protest at Gaza bombardment

What is a diamond primarily composed of?

• Carbon

• Gold

• Silicon

• Iron

In which industry are diamonds most commonly used?

• Agriculture

• Automotive

• Jewelry

• Textile

What is one cultural significance of diamonds?

• Used as currency

• Used in ancient medicine

• Symbol of wealth and status

• Symbol of peace

Which property of diamonds makes them the hardest natural material?

• Their color

• Their crystal structure

• Their weight

• Their size

Which of the following is NOT a property of diamonds?

• High thermal conductivity

• Softness

• High refractive index

• Electrical insulator