Diamonds are the hardest known material, ranking 10 on the hardness scale. They are used in jewelry and industrial applications, such as drill tips, due to their ability to cut through strong materials without damage.

What is the primary characteristic of diamonds that makes them unique among rocks?

• They are the strongest rocks.

• They are the lightest rocks.

• They are the most expensive rocks.

• They are the most colorful rocks.

What is the Mohs scale used for?

• Calculating the price of rocks

• Determining the weight of rocks

• Measuring the color of rocks

• Assessing the hardness of rocks

On the Mohs scale of hardness, what rating do diamonds receive?

• 10 out of 10

• 9 out of 10

• 8 out of 10

• 7 out of 10

Which of the following is NOT a common use of diamonds?

• Building houses

• Creating drill tips

• Cutting through strong materials

• Making jewelry

Why are diamonds used in industrial tools like drill tips?

• They are easy to shape.

• They are very cheap.

• They are lightweight.

• They can cut through strong materials without damage.