Curated OER
Patterns in Properties (of elements and compounds)
For this element properties worksheet, learners complete a crossword puzzle with 91 questions related to properties of elements and compounds.
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Chemical Reactions
In this chemical reactions worksheet, learners solve 16 exercises by writing and balancing chemical reactions. They calculate the concentration of various solutions.
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Osmosis and Diffusion: Egg Lab
Students examine why diffusion and osmosis happen in an egg cell. In this diffusion lesson students demonstrate a semi permeable membrane.
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Floor Polish Experiments
Students compare various brands of floor polishes and test their durability and appearance. In this floor polish lesson students test different polishes and check performance.
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Polymerization Experiments
Students study the concepts of polymerization and the function of crosslinkage. In this polymer lesson plan students complete a lab activity and write down their observations.
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Properties of Matter (Biomaterial Through Nanotechnology)
Students investigate friction between different surfaces. In this physics lesson, students research biomaterials that can reduce friction. They calculate efficiency using a mathematical formula.
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Chlorophyll
Middle schoolers use thin layer chromatography, TLC, to separate various pigments found in plants.
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Plant Pigment Chemistry
Students discover the roles of pigments present in leaves. They extract and isolate pigments present in autumn leaves using a thin layer chromatography. Very nice lesson and lab!
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Introducing Chromatography
Middle schoolers investigate chromatography. In this chromatography lesson plan, students investigate a lab set up for chromatography.
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Characteristics of Crystals
In this crystals worksheet, students complete a graphic organizer by filling in the characteristics of the different crystal types including melting/boiling point and electrical conductivity.
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Solutions Worksheet
Students complete a worksheet on solutes in chemistry. They are given an equation in order to find the total mass solution, molarity, and molality.
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Rate of Solvation
Students test factors that may affect the rate at which sugar dissolve in water. They conduct two studies: One is to test the effect of temperature on the rate of solvation and the other is to test a factor which Students come up with...
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Separation of Unknowns in a Liquid
Learners identify the different components of a given sample using chromatography. In this chemistry lesson, students compare paper and column chromatography. They collect data and construct data tables.
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Temperature Effects on Solubility
Students determine the solubility of salt in water at three different temperatures and graph the results. They use the following skills: observing, inferring, and graphing.
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How Our Water Becomes Polluted
Learners list causes of water pollution, discuss how people contribute to water pollution, and explain concept of watershed.
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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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Using Chromatography to Identify Unknowns
Learners are introduced to the concept of chromatography. They practice using new vocabular and observing experiments. They answer discussion questions to end the lesson plan.
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Bacterial Movement Through Water Part 2- Dilution/Powers of Ten
Students make dilutions using dulution trays. They keep track of their dilutions and the concentrations of solute, to parts per million (ppm) and parts per billion (ppb), in order to have an comprehension of the terms. Students make...
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More on Temperature and Solubility
Learners discover how temperature effects the solubility of solutes by experimenting with a range of temperatures. They develop skills for observing, inferring, measuring, comparing and contrasting.
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Ice Cream
Students are shown an experiment making ice cream while discovering the freezing point depression. There are questions for students to answer after the demostration.
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The Awful 8: A Play
Students perform a play that presents the causes and effects on people and the environment of the eight major air pollutants.
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The Nature Of Dissolving Processes
Young scholars examine the rule of "like dissolves like." They define and describe solutions and solubility models on molecular liquids, ionic solids, and molecular solids.
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The Awful Eight
Students investigate the concept of a carpool and its contributions to either reducing or increasing air pollution. They conduct research using a variety of resources for background information. The information is used to write a play...
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Aqueous Solutions
In this aqueous solutions worksheet, students will explore the characteristics of solutions, including the ability of different compounds to dissolve in the solutions. This worksheet has 10 true or false statements and 8 short answer...
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