Universal Solvent
A universal solvent is a substance that has the ability to dissolve a wide range of different solutes. The most well-known universal solvent is water. Water is often referred to as the "universal solvent" because it has the ability to dissolve a wide variety of substances. This is due to its unique chemical structure and properties.
Properties of Water as a Universal Solvent
- Polarity: Water is a polar molecule, meaning it has a slightly positive charge on one end and a slightly negative charge on the other. This polarity allows water to easily interact with and dissolve other polar or ionic substances.
- Hydrogen Bonding: Water molecules are able to form hydrogen bonds with other molecules, which enhances its ability to dissolve substances.
- Versatility: Water can dissolve a wide range of substances, including salts, sugars, gases, and some types of organic compounds.
Examples of Water as a Universal Solvent
Water's ability to act as a universal solvent is evident in many natural processes and everyday life, such as:
- Dissolving salt in water to create a saline solution
- Breaking down sugar crystals in water to make a sweet solution
- Allowing nutrients to dissolve in water for absorption by plants and animals
- Forming rivers and streams by dissolving and transporting minerals and sediments
Study Guide
When studying the concept of a universal solvent, consider the following key points:
- Define the term "universal solvent" and provide examples of substances with this property.
- Describe the unique properties of water that enable it to act as a universal solvent, including its polarity, hydrogen bonding, and versatility.
- Explain the significance of water as a universal solvent in various natural and industrial processes.
- Explore the role of water as a universal solvent in the environment and its impact on living organisms.
By understanding the concept of a universal solvent and the role of water in this capacity, you can appreciate the importance of water in various chemical, biological, and environmental contexts.
.◂Science Worksheets and Study Guides Third Grade. Relationships among living things
Study Guide
Relationships among living things 
Activity Lesson
Relationships Among Living Things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Worksheet/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things Vocabulary/Answer key
Relationships among living things
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes
Create representations to explain the unique and diverse life cycles of organisms other than humans (e.g., flowering plants, frogs, butterflies), including commonalities such as birth, growth, reproduction, and death.
Unity and Diversity
Construct an argument from evidence to explain the likelihood of an organism’s ability to survive when compared to the resources in a certain habitat (e.g., freshwater organisms survive well, less well, or not at all in saltwater; desert organisms survive well, less well, or not at all in woodlands).
Create models that illustrate how organisms and their habitats make up a system in which the parts depend on each other.