What is Freshwater?
Freshwater is water that contains low levels of dissolved salts, typically less than 1%. It is found in rivers, lakes, ponds, and underground sources such as aquifers and wells.
Characteristics of Freshwater
- Low salinity
- Supports diverse ecosystems
- Used for drinking, irrigation, and industrial purposes
- Vulnerable to pollution and overuse
Freshwater Ecosystems
Freshwater ecosystems include rivers, lakes, ponds, and wetlands. These habitats support a wide variety of plants and animals, including fish, amphibians, insects, and birds.
Importance of Freshwater
Freshwater is essential for drinking, agriculture, and industry. It also supports diverse ecosystems and provides habitat for numerous species of plants and animals.
Threats to Freshwater
Freshwater ecosystems are threatened by pollution, habitat destruction, overuse, and climate change. It is important to protect and conserve freshwater resources for future generations.
Study Guide
- What is the salinity level of freshwater?
- List three examples of freshwater ecosystems.
- Why is freshwater important for human survival?
- What are the main threats to freshwater ecosystems?
- How can we protect and conserve freshwater resources?
◂Science Worksheets and Study Guides Third Grade. Where plants and animals live
Study Guide
Where plants and animals live 
Worksheet/Answer key
Where plants and animals live Worksheet/Answer key
Where plants and animals live Worksheet/Answer key
Where plants and animals live Vocabulary/Answer key
Where plants and animals live Vocabulary/Answer key
Where plants and animals live
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
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.