Where Do Diamonds Come From

Where Do Diamonds Come From

Assessment

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Science, Engineering, Geography, Chemistry

11th Grade - University

Hard

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Diamonds are formed from carbon atoms in extreme conditions deep within the Earth. They are brought to the surface by volcanic eruptions. While natural diamonds are ancient, synthetic diamonds can be made in labs using chemical vapor deposition. Both types share the same mineral structure but differ in origin. The carbon in natural diamonds may come from deep Earth sediments or organic material in tectonic plates, but not from coal. Synthetic diamonds are often flawless and environmentally friendly.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary chemical composition of a diamond?

Silicon atoms bonded in a hexagonal structure

Carbon atoms bonded in a tetrahedral structure

Oxygen atoms bonded in a cubic structure

Nitrogen atoms bonded in a linear structure

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where are diamonds most likely to form naturally?

On the surface of the Earth

In the Earth's crust at shallow depths

In the oceanic crust

Deep within the Earth's mantle

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What geological formations are known to contain diamonds?

Limestone formations

Granite formations

Kimberlite formations

Basalt formations

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a likely source of carbon for natural diamonds?

Coal deposits near the Earth's surface

Organic material in subducting tectonic plates

Meteorites impacting the Earth

Carbon-containing sediment deep in the mantle

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key advantage of lab-made diamonds over natural ones?

They are generally flawless and environmentally friendly

They have a unique chemical composition

They are always larger in size

They are formed from coal