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Separation of Unknowns in a Liquid
Pupils 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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Thin-layer chromatography
Students produce chromatograms of various vegetable extracts and standards. Using a flat bed scanner, they create a database of the results.
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Flower Pigments
Learners experiment with Thin Layer Chromatography to separate pigments found in flower petals.
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Extraction of Allicin: The Active Ingredient in Garlic
Students conduct research to determine the structural formula for Allicin, a component of garlic. They participate in a lab to extract Allicin from garlic and complete a set of questions about their work.
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A Solution for Moles
Students calculate the concentration of different solutions. In this chemistry lesson, students explain what a solution is. They explain ways to change the concentration of a solution.
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The Awful Eight Lesson Plan
The students list major air pollutants, what causes them, and their effects on people and the environment. Students list ways they can prevent or reduce the types of air pollution mentioned in the play.
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The Awful 8: The Play
Middle schoolers become aware of the cause and effects of different air pollutants. They present a play about the different pollutants.
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Using Ion Exchange Chromatography to Separate Proteins
Students explore protein purification by separating a positively charged molecule, lysozyme, from a negatively charged molecule, albumin, at neutral pH using ion exchange chromatography.
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Structure of the Earth System
Eighth graders describe the steps in the water cycle. They discuss factors that affect runoff and explain the differences between stalactites and stalagmites. They discover the importance of ground water.
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Characterizing Drosophila Mutants
Students investigate wild-type and several mutant varieties of Drosophila melanogaster, which are characterized and distinguished according to pteridine pigments. They discoverthat paper chromatography of the wild-type Drosophila...
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Water Chemistry
Young scholars engage in a lesson that is concerned with the concept of water chemistry. They conduct research using a variety of resources. Students also consider an experiment to observe how water has the abiility to exist as three...
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Ice Cream
Students explore the concept of the colligative property. Through experimentation, students lower the freezing point of a liquid in order to create a solid by using household ingredients to create ice cream.
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How Much Do I Know About Water?
Sixth graders explore how water behaves on a penny. In this states of matter lesson, 6th graders observe water as they add drops to a penny. This lesson helps students apply the adhesive properties of water to the water cycle.
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It's the Slime Time
Students experiment to understand the basic concept of polymerization and to understand the dissolution theory. Student experiment with polymers to understand its behavior and the mechanical behavior of polymer networks.
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Isolation of Synthetic Chemicals from Plant Leaves
Learners isolate and identify a dye, which represents a synthetic pesticide, from plants.
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Come Shine with Us: Floor Polish Testing and Industrial Science To Teach Critical Thinking
Middle schoolers discover that science relates to everyday life and see testing procedures used in an industrial laboratory. Students compare various brands of household and industrial floor polishes for specific criteria.
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Toxics Lesson Plan
Students discover that chemicals and toxics are all around us and we can make a choice whether or not to use them.
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Designing a Flotation Strategy for the Purification of Recycling
Twelfth graders work in teams to design a method of recycled plastics purification by flotation. They base their design on the concept that different kinds of plastics have different densities and keep overall costs and purification time...
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Petroleum Poisons
Students discover how harmful petroleum distillates are that are found in the home. They demonstrate how to collect information about consumer products. They also ask their parents about the safety of the cleaning supplies used in their...
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How Do I Get a Pure Sample of the Molecules I Make?
Pupils initially engage in online research and consult print materials to identify a compound to produce. Once a selection has been made, individually, students conduct lab experiments to isolate substances. The end product is a...
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Study of the Cell
Learners draw a diagram to show the fluid mosaic model of a membrane. They explain how hydrophobic and hydrophilic properties help membranes hold their shape. They identify the functions of different cell membrane proteins as well.
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Quick Freeze (Demonstration)
Students witness an demonstration in which a bottle of club soda will go from a liquid to a solid when it is opened and the carbon dioxide is allowed to escape. This will help them understand that the freezing point of a solution will...
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Groundwater: Cleaning Up
Students research the various aspects of groundwater contamination that threaten health and human safety. They create a model and display that informs other about the health and safety risks. Students illustrate ways in which these...
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