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...
Curated OER
Plant Transpiration
Students conduct various experiments to investigate plant transpiration. In this biology lesson, students explain how this process helps maintain the hydrologic cycle. They measure the rate of water loss in plants using a potometer.
Curated OER
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...
Curated OER
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...
Curated OER
Microbial Influence on Earth's Systems
Students identify the different biogeochemical cycles on Earth. In this biology activity, students observe microbes under a microscope. They compare and contrast respiration and photosynthesis.
Curated OER
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...
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
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.
Curated OER
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.
Curated OER
Sun Seeking Plants
Young scholars 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...
Curated OER
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.
Curated OER
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...
Curated OER
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...
Curated OER
Nitrogen Fixation, OR What a Gas!
Young scholars 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...
Curated OER
Testing Your Water
Learners 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.
Curated OER
Field Crops in the Agro-ecosystem
Ninth graders explore how to apply ecological analysis to cropping systems. In this agro-ecosystem lesson students study management practices including soil and fertility.
Curated OER
Water Retention and Soil Variation in Local Ecosystems
Students identify the differences in local soil types and the relationship between soil size and water retention. They are introduced to microenvironmental conditions in ecosystem sustainability.
Curated OER
The Global Impact of Insect Borne Diseases & Agriculture
Students study the global impact of insect borne diseases, the appropriate use of pesticides, and the concept of human interrelations on a world wide scale. They examine how to safely apply a pesticide, according to the label.