Unit 4 Test Review

Front

What property of a diamond allows it to be used for industrial purposes, such as drills?

Back

Hardness: Diamonds are the hardest known natural material, making them ideal for cutting and drilling applications.

Front

What is a characteristic of sedimentary rocks?

Back

Sedimentary rocks can be made of organic materials and can contain fossils.

Front

How can the relative cooling rate of an igneous rock be estimated?

Back

By comparing the crystal size: Larger crystals indicate slower cooling, while smaller crystals indicate faster cooling.

Front

What is a clastic sedimentary rock?

Back

A rock formed from the cementation of sediment particles, such as sand, which can be compacted and solidified.

Front

What is an ore?

Back

A naturally-occurring material from which a mineral or minerals of economic value can be extracted.

Front

Define luster in minerals.

Back

Luster refers to the way light interacts with the surface of a mineral, indicating its shine or dullness.

Front

What is the difference between magma and lava?

Back

Magma is molten rock beneath the Earth's surface, while lava is magma that has reached the surface.

Front

What are fossils?

Back

Fossils are the preserved remains or traces of ancient organisms, often found in sedimentary rocks.

Front

What is the significance of crystal size in igneous rocks?

Back

Crystal size can indicate the cooling history of the rock; larger crystals suggest slower cooling.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic rocks.