8th Grade 1st Semester Final Study Guide

Front

What are atoms?

Back

Atoms are the basic units of matter that combine to form compounds and minerals.

Front

What is the rock cycle?

Back

The rock cycle is a continuous process that describes the transformation of rocks through various geological processes including erosion, weathering, and compaction.

Front

What does the hardness of a mineral indicate?

Back

The hardness of a mineral indicates its ability to scratch other minerals, measured on the Mohs scale.

Front

Where are electrons located in an atom?

Back

Electrons are located outside of the nucleus and have a negative charge.

Front

What type of mineral grains form from slowly cooled magma?

Back

Slowly cooled magma produces large mineral grains.

Front

What is the difference between elements and compounds?

Back

Elements are pure substances that consist of only one type of atom, while compounds are substances formed from two or more different types of atoms chemically bonded together.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Front

What is weathering?

Back

Weathering is the breakdown of rocks and minerals into smaller pieces due to environmental factors like temperature changes, water, and biological activity.

Front

What is compaction in geology?

Back

Compaction is the process by which sediments are pressed together under pressure, reducing their volume.

Front

What is the Mohs scale?

Back

The Mohs scale is a scale used to measure the hardness of minerals, ranging from 1 (talc) to 10 (diamond).