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...
Curated OER
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...
Curated OER
Rainbow Electrophoresis Lab
Learners are introduced to the principles of gel electrophoresis. They practice loading gels and pipetting. For this laboratory activity, food color is separated into constituent pigments. The lab can be run with standard...
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Thin Layer Chromatography (TLC) Separation of Plant Pigments - Chlorophyll, Carotene
Learners 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 questions.
Curated OER
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
For 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
High schoolers 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...
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Solutions, Suspensions, and Colloids
In this solutions, suspension, and colloids worksheet, young scholars 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 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
Students research the mechanics of liquid chromatography. In this technology instructional activity, students calculate the concentration of unknown samples. They write a report about their research and lab results.
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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 are able to identify whether or not the substance is pure, and whether it is an aldehyde or ketone. This is an...
Curated OER
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 challenge...
Curated OER
Introducing Chromatography
Young scholars investigate chromatography. In this chromatography lesson plan, students investigate a lab set up for chromatography.
It's About Time
Solutions, Suspensions, and Colloids
Chemists are frequently in suspension, but not because they misbehave! Scholars mix various items with water to create solutions, suspensions, and colloids. They test each one to determine their differences and properties. The resource...
Curated OER
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
Learners 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.
Curated OER
SEPARATION OF A STARCH-GLUCOSE MIXTURE USING GEL FILTRATION
High schoolers 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...
