Science Unit 2 Rocks and Soils

Front

What is the term used to describe the feel of a rock's surface, whether it is smooth or bumpy?

Back

Texture

Front

How can a scientist determine the hardness of a rock?

Back

By asking if the surface of the rock is bumpy or smooth.

Front

What property of a rock is determined by whether it can scratch another material?

Back

Hardness

Front

Which characteristic is NOT typically used to identify a rock?

Back

Weight

Front

What type of rock is likely to be smooth and round?

Back

A rock that has been in a river.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the process called that forms sedimentary rocks?

Back

Lithification, which involves compaction and cementation of sediments.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive rocks form from magma that cools slowly beneath the Earth's surface, while extrusive rocks form from lava that cools quickly on the surface.

Front

What is the significance of a rock's mineral composition?

Back

It helps determine the rock's properties, such as color, hardness, and how it reacts to weathering.

Front

What is weathering in the context of rocks?

Back

The process of breaking down rocks into smaller pieces through physical, chemical, or biological means.