Columbus City Schools
Magnificent Mendeleev: An Elemental Tale
Discover how the periodic table tells the story of its elements. Learners begin by studying the makeup of several mixtures. Their analysis leads to a discussion of elements and the periodic table. As they dig deeper, they understand the...
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Solutions, Suspensions, & Colloids Lab
In this solutions, suspension and colloid worksheet, students complete a lab experiment in order to determine if a given mixture is a solution, suspension or colloid. They are given six vials and they record their observations of each...
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Rainbow Electrophoresis Lab
Students are introduced to the principles of gel electrophoresis. They practice loading gels and pipetting. In this laboratory activity, food color is separated into constituent pigments. The lab can be run with standard electrophoresis...
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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.
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Enzyme Labs Using Jello
Students test for the presence of enzymes in fruit and the specificity of those enzymes, as well as to identify and show the susceptibility of enzymes to certain environmental factors (temperature and pH) originating in the enzyme's...
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Exploring the Scientific Method: Separation of a Complex Mixture
Students work in teams to use the scientific method to separate complex mixtures into pure components.
Sunlight Cal-Tech
Chromatography of Plant Pigments
Through a hands-on activity, an acetone-spinach solution is pre-made and learners use this solution to separate the pigments found in spinach using chromatography. The comprehensive resource includes an analysis and conclusion...
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Chromatography
Students use chromatography to separate substances in Kool-Aid, Crayola markers and leaves. In this chromatography lesson plan, students make chromatograms to separate substances in a mixture through absorption. Students find the Rf...
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Kinetics of acetone iodination
In this chemistry worksheet, students examine the given concept in order to apply in the laboratory setting. The sheet includes in depth background information.
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The Conceptual Theory of Chromatography
Students conduct a lab to determine the best way to separate a variety of mixtures choosing between paper, thin layer and column chromatography. They use chromatography techniques to identify unknown substances and submit a lab report on...
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Solutions, Suspensions, and Colloids
In this solutions, suspension, and colloids worksheet, middle schoolers answer questions as it relates to their reading information about solutions, suspensions, and colloids. Students observe different examples and complete a chart as...
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Mixtures
In this mixtures pre-lab worksheet, students compare and contrast suspensions and colloids and solutions and colloids. Students describe the Tyndall effect. This worksheet has 10 short answer questions.
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Separation of Unknowns in a Liquid
Students identify the different components of a given sample using chromatography. In this chemistry instructional activity, students compare paper and column chromatography. They collect data and construct data tables.
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The Pure, The Mixture, The Unknown
Ninth graders participate in classroom discussions, demonstrations and hands-on laboratory activities about pure substances and mixtures with a focus on common household materials. They investigate: What is a pure substance? What is a...
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Column Chromatography
Learners research the mechanics of liquid chromatography. In this technology lesson, students calculate the concentration of unknown samples. They write a report about their research and lab results.
Creative Chemistry
Preparation of Crystalline Derivatives of Aldehydes and Ketones
Chemistry explorers prepare a crystalline derivative and find its melting point. Once they discover the melting point, they can identify whether the substance is pure or an aldehyde or ketone. This outstanding laboratory activity helps...
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BioFuels: The Chemistry and Economics of Alternative Fuels
Junior chemists manufacture biodiesel in the lab. In this exercise, they check the purity of the biodiesel using thin layer chromatography. They also calculate its density and heat of combustion. They are sure to rise to the...
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Introducing Chromatography
Middle schoolers investigate chromatography. In this chromatography instructional activity, students investigate a lab set up for chromatography.
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Chromatography
Advanced techniques for the lab use of chromatography are detailed here and your students will learn the specifics of separating molecules using a staionary and mobile medium. Diagrams of the equipment used and some facts about how...
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The Chemistry of Refining Crude Oil
Consider our energy sources: wood, coal, oil, uranium. Learners compare the pollution to energy produced for each. They practice fractional distillation of an alcohol/water mixture to simulate the process of refining crude oil....
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Separation of Unknowns in a Liquid
Students identify chromatography as method of separating the components of a liquid. Students discover that dyes are composed of more than one component in achieving a particular color in these lessons on paper chromatography.
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SEPARATION OF A STARCH-GLUCOSE MIXTURE USING GEL FILTRATION
Learners make a starch-glucose solution and pour it through gel in order to separate the starch from the glucose. They examine how starch is a larger molecule than glucose and test for the presence of these substances using other...
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Chromotography
In this chromatography activity, students are given markers, filter paper and a solvent to separate the pigments found in each marker. Students create a chromatogram for each marker.