Curated OER
Classroom Aquaponics: Exploring Nitrogen Cycling in a Closed System
Students investigate nutrient cycling in a simplified desktop ecosystem involving aquarium and hydro-ponically grown plants. They set up an aquarium with 10 gallons of water at least a week before the lab is planned and place...
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Plant Transpiration
Students conduct various experiments to investigate plant transpiration. In this biology activity, students explain how this process helps maintain the hydrologic cycle. They measure the rate of water loss in plants using a potometer.
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Plant Life Cycle
Fourth graders explore the plant life cycle. They discuss the sequence of events in the life cycle of the plant and illustrate how the life cycle never ends. Students explore the importance of water, sunlight, and nutrients during the...
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Chemistry And The Nitrogen Cycle
Students investigate the factors that compose the nitrogen cycle. The harmful effects of acid rain and ozone depletion are also discussed in the lesson. Students define the nutrient that is often limiting to plant growth through...
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Microbial Influence on Earth's Systems
Students identify the different biogeochemical cycles on Earth. In this biology lesson, students observe microbes under a microscope. They compare and contrast respiration and photosynthesis.
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The Marvels of Mud
Young scientists roll up their sleeves and get a little dirty in this three-day earth science investigation. Following the scientific method, children monitor the growth of algae in pond water samples in order to determine the role that...
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Biology Demos
Students participate in biology demos. In this biology instructional activity, students explain how energy is released in the ATP cycle. They demonstrate DNA replication process.
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.
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Horticulture Crops in the agro-ecosystem
Ninth graders apply ecological analysis to fruit and vegetable production systems. In this horticulture lesson students learn about different management practices.
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Nitrogen Fixation, OR What a Gas!
Students illustrate the adaptation and co-evolution of organisms. They examine set up an experiment to determine the effect of adding the Rhizobium bacteria to a group of legume seeds.
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Consider the Issues
Students develop and express opinions on personal and societal issues in biology through journal entries (written and other forms), oral position statements and group discussions.
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Maternal Nutrition during Pregnancy and Lactation
Students explain the relationship among nutrition, infection and diseases. In this health science lesson plan, students suggest ways to break the nutrition-infection cycle. They brainstorm solutions to prevent infectious diseases in the...
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Sun Seeking Plants
Students investigate the story "The Tiny Seed" by Eric Carle. This story is used to introduce the children to the concept that seeds change and grow into plants when conditions in the environment including temperature, light, water and...
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Earth Surface Socratic Questions
Students explore the ways Earth's surface is shaped by hydrologic, climate and tectonic forces by participating in a whole class discussion. They respond to prompts that lead them to conclusions about the relationships between landforms...
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Building an Ecologically Balanced Living Space
Students design and build an ecologically balanced living space based on the principles of an old growth forest. They take one part of a house (or structure in the community) and redesign it according to the principles of the forest cycle.
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Selecting Soil Organisms in Compost
Students demonstrate that many of the enzyme systems needed to break down--and therefore clean up-society's wastes already exist in nature among the decomposers. They select the best starch-munching organisms by altering the environment...
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Plant Biotechnology: Controlling Tissue Differentiation
Students demonstrate hormonal control of plant tissue differentiation and relate this differentiation to gene expression. They explore the effects of hormones (auxin and cytokinin) on the genes that control tissue differentiation in callus.
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Multiplying Microbes
Ninth graders investigate the techniques of culturing bacteria. They culture bacteria using agar plates. Students identify and describe some environmental conditions that effect bacteria growth.
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Dirty Decomposers
Seventh graders design and conduct experiments to determine what environmental factors favor decomposition by soil microbes. They use chunks of carrot for the materials to be decomposed, and their experiments are carried out in plastic...
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Toward a Sustainable Agriculture
Students analyze organic production systems. In this organic agriculture lesson, students examine key organic practices for both crop and livestock. This lesson includes 5 different activities, 4 critical thinking questions and...
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Nitrogen Fixation, OR What a Gas!
Students gain skill in the design, implementation, and reporting of a scientific research project using the scientific method. They set up an experiment to determine the effect of adding the Rhizobium bacteria to one group of legume...
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Testing Your Water
Students perform several water quality tests on groundwater from their area. They use test strips to determine the pH, hardness, alkalinity, nitrates, iron and chloride levels.
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Selecting Soil Organisms in Compost
Students conduct an experiment to demonstrate that many of the enzyme systems needed to break down society's wastes exist in nature among the decomposers in a compost pile. They culture compost bacteria on starch agar to examine the...
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Project Wetlands
Students develop a joint undertaking designed to solve an environmental problem in their local community. They tackle the problem of erosion of banks and chemical run-off into a nearby lake, which is within walking distance of school.