Curated OER
Semipermeable Membranes and Bioaccumulation
Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....
Curated OER
Kildare, USA: An Environmental Health Simulation
Your biology class plays the role of epidemiologist when a mysterious illness breaks out in Kildare, USA. Using interviews with doctors, patients, and local citizens, maps, the results from different materials sampling, they work to...
Curated OER
Water Pollution and Food Chains
Sixth graders study the effect of pollution in our food chains. In this plant biology lesson, 6th graders first experiment with pollution by placing a carnation in colored water. Next they use a food chain triangle to see the concept of...
Curated OER
Water Filtration
As an example of nature's water filtering system, young ecologists conduct an experiment in the lab. They construct a funnel out of a plastic bottle, fill it with specified layers of materials that simulate layers of soil, then run muddy...
Curated OER
How do pollutants bioaccumulate and biomagnify?
Students review the basic concepts of the food chain. In small groups, they research an organism and create a food web. In addition, they study biomagnifications and write a brief essay or make a poster informing others about the...
Curated OER
Water Pollution and Food Chains
High schoolers investigate the two key concepts covered in this instructional activity: first, how pollution can affect plants, and, second, how polluted plants affect the rest of the food cycle. In sum, this instructional activity...
Bridge
Mercury - Mercury is Rising
Hold a discussion in your class about the increase in mercury being found in fish that are caught commercially as food for humans. Given a worksheet, learners then calculate how much fish a person can safely eat each month to remain...
Curated OER
Forest In A Jar
Tenth graders are introduced to the process of succession and gain awareness of the changing nature of ecosystems. They demonstrate a comprehension of the dynamic nature of ecosystems, including the relationship between ecological...
Curated OER
Biology: living Things and their Environment
Students recognize that organisms depend on other organisms. In this organism lesson, students understand symbiotic relationships and competition. Students explain food chains and food webs. Students understand that change is always...
Curated OER
Predators and Prey
Students explain how the food chain works. They contrast predators with prey and describe their function in nature. Students discuss how the food chain aids in keeping nature balanced. In small groups, they play a game that simulates the...