Curated OER
Making a Food Web and Learning About Ecosystems
Third graders examine the difference between a food web and food chain. They also examine the importance of the sun in a food web and food chain. Students understand what happens when you remove parts of the chain.
Curated OER
Water and Rice Agriculture
Second graders investigate the agriculture of rice by reading a study guide. In this food making lesson, 2nd graders read about the irrigation of rice fields used for harvesting. Students write three sentences about the rice...
Other
Freshwater Ecology
This is a comprehensive and detailed site providing information on aquatic macroinvertebrates. The emphasis is on biomonitoring of water quality through quantitative assessment of numbers and types of small aquatic organisms.
Sophia Learning
Sophia: Freshwater Biomes: Lesson 2
This lesson will provide an understanding of the characteristics and role of freshwater biomes, and its effect on living things. It is 2 of 4 in the series titled "Freshwater Biomes."