Curated OER
Enzyme Grabbers
Students perform two experiments to show the properties of enzymes. They use pectinase to produce apple juice from applesauce to show enzyme action and then taste the difference between raw and boiled papaya seeds as evidence of enzyme...
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Chemical Reaction Rates
High schoolers observe demonstrations to show factors that affect rates of chemical reactions. In this rates of chemical reactions lesson, students investigate how catalysts, reactant concentrations, temperature and surface area affect...
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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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Off Base
Students study La Chatelier's principle and identify how carbon dioxide may affect pH. In this coral lesson students complete a worksheet on pH and observe a lab.
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Coevolution: A Simulation
Students participate in a demonstration in which they must attempt to suck liquid from varying containers with straws of varying sizes. They discuss the concept of coevolution and see why this activity illustrate the coevolution of...
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What is a Karst?
Students examine the process that creates limestone. In this limestone lesson students complete a worksheet and participate in a lab activity.
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Natural Cleaners
Students explore natural cleaners. In this science lesson plan, students gain an understanding of the effects that commercial cleaners have on the environment and teach them to make their own cleaners out of less hazardous materials.
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What's That Brown Fuzzy Stuff on My Plum?
Learners use Koch's Postulates to determine that a specific organism is the root cause of a specific disease and identify what Koch's Postulates are within a protocol. They describe symptoms and signs of diseased fruit and isolate fungal...
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Sprouting Artwork
Young scholars complete activities to study seeds sprouting and plant growth. In this plant science activity, students use mustard seeds and sponges to study the seed sprouting process. Young scholars observe their seeds for several days...
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Introductory Microbiology
Learners view a Reading Rainbow video on germs and discuss microbial diseases. They grow cultures of Staphylococcus aureus and then estimate and graph the count for their own bodies and those of the class.
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Populations and Ecosystems
Sixth graders examine the factors that influence the stability of ecosystems. They construct a miniature ecosystem in a jar that includes plants, small fish, and snails, record the population changes over a period of four weeks, and...
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Balloon Lungs
Students study the function of lungs. For this lung function lesson, students complete an experiment using balloons to study the way lungs work. Students study a diagram of their lungs and make a hypothesis for their lung capacity...
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Brine Shrimp Survival
Students develop an understanding of how growth and survival of an organism depends on physical conditions. They design an artificial environment in which brine shrimp can thrive. Students determine the optimum salinity for hatching of...
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Population Dynamics of Growth of Drosophila
Students experiment with Drosophila to determine if density of female flies, food sources, temperature and light affect the population dynamics of growth. Students graph their data and compare their results to the number of human...
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Population Dynamics of Growth of Drosophila
Students investigate population dynamics such as variation in density of females, composition of food sources an environmental factors such as light and temperature on Drosophila. They then relate their findings to human populations and...
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Dishing the Dirt Part 2
Students explore the differences between specific soil characteristics. They participate in an experiment in which they discover soil texture. They write their observations in a journal.