8th Grade 1st Semester Final Study Guide

Front

What is the principle of superposition in geology?

Back

In geology, the principle of superposition states that in any undisturbed sequence of rocks, the oldest layers are at the bottom and the youngest layers are at the top.

Front

What is an ore?

Back

An ore is a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably.

Front

What is the modern periodic table arranged by?

Back

The modern periodic table is arranged by increasing atomic number.

Front

What is relative dating in geology?

Back

Relative dating is the method of determining the order of events and the relative age of rocks by examining their position in a sequence.

Front

What is the difference between absolute dating and relative dating?

Back

Absolute dating provides a specific age or date for a rock or fossil, while relative dating places events in order without providing a specific age.

Front

What is a mineral?

Back

A mineral is a naturally occurring inorganic solid with a definite chemical composition and a crystalline structure.

Front

What is the significance of fossils in geology?

Back

Fossils provide important information about the history of life on Earth and can be used to date the rocks in which they are found.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the process of mining?

Back

Mining is the extraction of valuable minerals or other geological materials from the Earth.

Front

What is the economic importance of minerals?

Back

Minerals are essential for various industries, including construction, manufacturing, and technology, and their extraction can significantly impact the economy.