Bases in Earth Science
In Earth Science, bases are substances that can neutralize acids and are also known as alkaline substances. Bases have a pH level greater than 7 and feel slippery to the touch. They are essential in various Earth Science processes and are found in natural features such as soils and water bodies.
Key Concepts about Bases
- Chemical Properties: Bases are characterized by their ability to release hydroxide ions (OH-) in an aqueous solution. When a base reacts with an acid, they undergo a neutralization reaction to form water and a salt.
- pH Scale: The pH scale is used to measure the acidity or alkalinity of a substance. Bases have a pH level higher than 7, with stronger bases having a pH closer to 14.
- Common Bases: Some common bases in Earth Science include sodium hydroxide (NaOH), potassium hydroxide (KOH), and calcium hydroxide (Ca(OH)2).
- Applications: Bases are used in various Earth Science processes, including soil pH regulation, water treatment, and mineral extraction.
Study Guide
When studying bases in Earth Science, it's important to focus on the following key points:
- Understand the chemical properties of bases and how they interact with acids in neutralization reactions.
- Learn about the pH scale and how it is used to measure the acidity or alkalinity of substances, including bases.
- Identify common bases and their uses in Earth Science processes.
- Explore the applications of bases in natural systems, such as soil and water bodies.
Additionally, practicing sample problems related to calculating pH levels and understanding the behavior of bases in different environmental conditions can help reinforce your understanding of this topic.
.◂Earth Science Worksheets and Study Guides High School. Rocks I
Worksheet/Answer key
Rocks I 
Worksheet/Answer key
Rocks I Worksheet/Answer key
Rocks I Vocabulary/Answer key
Rocks I Vocabulary/Answer key
Rocks I Vocabulary/Answer key
Rocks I
Worksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
EARTH AND SPACE SCIENCE
Earth’s Systems
Construct an explanation from evidence for the processes that generate the transformation of rocks in Earth’s crust, including chemical composition of minerals and characteristics of sedimentary, igneous, and metamorphic rocks.
ENVIRONMENTAL SCIENCE
Earth and Human Activity
Engage in argument from evidence to defend how coastal, marine, and freshwater sources (e.g., estuaries, marshes, tidal pools, wetlands, beaches, inlets, rivers, lakes, oceans, coral reefs) support biodiversity, economic stability, and human recreation.