Curated OER
Nitrogen Cycle-Stream Side Science
A thorough background and nitrate sampling lab sheet are provided to share with your young scientists. After discussing the nitrogen cycle with the class, you will break them into small groups and show them how to use their inquiry...
Nuffield Foundation
Nitrogen-Fixing Bacteria in Root Nodules of Leguminous Plants
Fixin' to add a great resource to your plans? Scholars perform an experiment to investigate nitrogen-fixing bacteria from plant roots. Along the way, they learn about the concepts of symbiosis and mutualism.
Curated OER
The Nitrogen Cycle
Students study the nitrogen cycle and construct a diagram. For this Earth Science lesson students use role play to see the various paths.
Curated OER
The Nutrient Cycles
Students investigate the circle of sea life by creating nitrogen compound models. In this oceanography lesson, students discuss sea creatures and where their waste goes. Students identify nitrogen cycles in the ocean by viewing...
Curated OER
Ecological Cycles Part 1
Knowing about the hydrologic cycle is the first step to understanding the carbon cycle. Upper graders discuss the earth's water content, polar ice caps, and the concept of the ecological cycle as it applies to carbon, nitrogen, and other...
Chicago Botanic Garden
Greenhouse Gas Emissions – Natural and Human Causes
Part three in the series of seven has pupils discussing the different greenhouses gases, learning about the carbon cycle, and then watching a short video about the carbon cycle. Based on their knowledge, individuals complete a greenhouse...
Chicago Botanic Garden
Greenhouse Gas Emissions — Natural and Human Causes
What impact do humans have on greenhouse gas emissions? What are the natural causes of these gasses? Thanks to the carbon cycle, carbon dioxide eats away at the earth's atmosphere with the intensified help of humans. Young scientists...
Curated OER
Necessary Nitrogen
Students view a video that presents the biogeochemical cycle of nitrogen. They compare types of soils and consider how different fertilizers affect soil composition.
Curated OER
Biochemical Cycles: Recycling Carbon and Nitrogen
Students construct flow diagrams of the carbon and nitrogen cycle processes. They identify sequences in each cycle that are affected by human impact and present their research to the class.
Curated OER
Go With the Energy Flow
Students explore energy and nutrient flow. In this science lesson, students diagram the flow of energy through food chains and food webs. Students discuss the importance of energy flow in Earth's ecosystems.
Curated OER
Ecology and the St. Lawrence River
Ninth graders complete a unit of lessons on ecosystems, organism interactions, and energy flow. They create a key for known species of fish, diagram the movement of energy through an ecosystem, and create and present food chains and food...