Curated OER
Auxin: Indole-3-Acetic Acid (AAA), A Hormone with Diverse Effects: Synthesis and Applications
Students synthesize Indole-3-Acetic acid from 3-indolylacetonitrile. In this biochemistry lesson, students determine the effect of different concentrations of IAA on lima beans. They explain how hormones help in plant development.
Curated OER
Seed Germination on Gelatin
Learners examine how seeds germinate in a culture. In this germination instructional activity students germinate seeds in gelatin and observe the growth of the plant.
Curated OER
Thin Layer Chromatography (TLC) Separation of Plant Pigments - Chlorophyll, Carotene
Young scholars use TLC separations to identify various substances. In this chlorophyll lesson students separate pigments found in different plants.
Curated OER
Thin Layer Chromatography (TLC)
Learners study flavinoids and how they exist in the plant kingdom. In this pigment lesson students complete a lab activity to see how flavinoids move in substances then record their observations.
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Paper Chromatography K-12 Experiment
Students study chromatography and how they can distinguish between the different pigments in a color. In this chromatography instructional activity students separate a mixture of dyes in soluble ink then record the colors they see.Â
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Density
Learners determine the density of different substances. In this physical science lesson, students rank them according to their density. They discover the relationship between volume and density.
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Ice
Learners examine the different propereties of ice, such as freezing temperature. In this scientific lesson students complete several activities using ice, like making ice cream.
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Does Dye Die? Foreign Chemicals in Our Environment
Students conduct an experiment to observe photolysis in the lab. In this chemistry lesson, students explain the mechanism behind photolysis. They test the impact of a non-toxic marker to plant metabolism.
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A Very Simple Conductivity Meter
Students investigate the hardness of different water samples using the conductivity meter. In this chemistry lesson, students build their own meter following specific procedures. They identify an unknown sample of water.
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Testing Water for Hardness Using Soap Bubbles K-12 Experiments & Background Information
Students examine water and what causes it to become hard. In this water lesson students use the soap test and determine the mineral content and hardness of a sample of water.
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Waves Interference
Students identify different wave types and their characteristics. In this wave lesson students complete activities by activating tuning forks and interpreting data.Â
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It's Just Right
Students conduct an experiment to determine the temperature tolerance of yeasts. For this biology lesson, students collect data and compare them by plotting graphs. They explain how extreme temperatures affect organisms.
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What's Stronger? What's Stiffer?
Students measure the length, width and height of different materials. In this design lesson students complete a lab to see what engineers need to consider when planning a structure.
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The Wonders of Bacteria
Students explore the evolution and features of bacteria through a series of activities. In this biology instructional activity, students collect data and graph bacterial growth. They design a brochure about bacteria's role in society.
Yale University
Airplane Mathematics
The history of aerodynamics is rich with experimentation and international collaboration. Author Joyce Bryant relays this dynamic past and provides math word problems using the formula of lift, the force that makes airplanes fly. She...
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Brown Bag Science
Students discover, through the discovery method, how electricity works. They construct a simple circuit and a parallel circuit, make an electrical motor work and add a switch to turn it on and off.
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Bubbles
Students blow bubbles using various wands and observe the shape of the bubble. They design and construct new wands and then measure and illustrate the bubbles.
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Help the Duck Find Her Babies
Students study the basic need for animals to attract mates and reproduce young.
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Case Study Two: Shark Dissection
High schoolers read an article on sharks prior to beginning a dissection lab. As part of the lab, students identify differences between the shark anatomy and human anatomy and hypothesize why those differences exist.
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Stranger in the House Exercise
Students examine the dangers of using the Internet. Students complete a worksheet that relates to a drama previously viewed. After completing the first ten questions on the worksheet, students participate in a class discussion and review...
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A "Fresh" Approach to the District's 6+1 Traits Writing Assessment
One way to assess improvement in writing is to conduct a district-wide assessment program. This resource details the Wisconsin Dells approach to assessing freshmen 6+1 Traits writing. The format could be adapted to any district or used...
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Express Yourself!
Elementary learners practice reading with expression to understand text better. They identify punctuation marks to see how each sentence is to be expressed with a certain emotion. Then they practice their new skills by working through...
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Scientific Data: It's Not as Pretty as It Looks!
The difference between accuracy and precision is fundamental for high school science learners. Using test kits for nitrate concentration in water, they compare readings with each other. They consider the accuracy, precision, and bias of...
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pH Basics
At some point, all science learners experiment with pH. In this brief lesson, they simply use pH strips or a meter to find the pH of six different solutions. A useful worksheet that displays a data chart is included for your middle...
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