Curated OER
Comparing Properties of Elements & Compounds
In this elements and compounds worksheet, students review the physical properties of different compounds and elements using websites for information. This worksheet has 1 graphic organizer and 1 short answer question.
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Characteristics of Crystals
In this crystals learning exercise, 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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How is the Strength of an Acid Determined?
Students study acids and how they can be measured. In this acid lesson students distinguish the properties that create strong and weak electrolytes.
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Corrosion & Rust
Students examine how and when rust and corrosion occur. In this corrosion lesson students complete an experiment to see why metals rust.
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Electronegativity
Students identify the type of bonding between two atoms of elements given their electronegativity values. They study the trend of electronegativity across the periodic table in small groups.
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How to identify a physical change from a chemical change
Pupils identify the difference between some physical and chemical properties and compare some physical and chemical changes. They design an experiment to distinguish between a physical or a chemical property of their choice.
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Teaching Avogadro's Number
Students design an experiment to determine Avogadro's number. Students utilize an ammeter, an electrolytic cell and internet research.
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How Can we Measure the Rate of a Chemical Reaction?
Learners examine different types of chemical reactions. They explore how alcohol molecules affect the reaction rates. They answer discussion questions to end the lesson.
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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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How Are The Properties of Covalent Compounds Influenced By Chemical Bonding?
Students work together to observe the bond lengths of single, double and triple bonds. They make their own predictions about the strength of the bonds and chemical reactions. They answer discussion questions to complete the lesson.
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Measuring Thermal Energy Transfer
Students conduct an experiment to calculate and quantify heat transfer. They conduct the experiment, and complete a data and lab conclusion sheet.
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Investigating the Shapes of Covalent Molecules and Measuring their Respective Bond Lengths and Bond Angles
High schoolers will draw Lewis structures of common covalent compounds using a Chem 3D computer program. They will predict the shapes of the molecules, complete a data table, and formulate rules for predicting shapes of molecules. In the...
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The Synthesis of Some Organic Compounds And Their Representative Structures
Students examine how to represent organic compounds three-dimensionally. They write a synthesis reaction for three demonstrations, and construct a three-dimensional structure using a molecular modeling set.
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Acid-Base Indicator Paper
Learners are able to prepare and use pH indicators in paper form. They find out the color of the indicator paper plus test solution may change with time. Students use red cabbage to use for the indicator.
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Activity #5 Environmental Effects
Students explain the implications of particle theory of The Law of Conservation of Matter for problems of pollution and waste disposal. They describe, in terms of atoms and molecules, what happens to materials when they are dissolved or...
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Activity #15 The Snowy Christmas Tree
Middle schoolers weigh out the proper amount of silver nitrate and prepare the silver nitrate solution. They observe what occurs when pure copper is added to silver nitrate solution. Pupils determine whether the change in the appearance...
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Activity #18 Decompostion of Baking Soda
Middle schoolers observe what occurs as baking soda is heated. They explain why a chemical rather than a physical change occurred during the procedure. Pupils identify the tpe of reaction (decomposition). Students conduct a glowing...
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Activity #19 Oxygen For Yeast
Students observe and record what occurs when yeast is added to hydrogen peroxide. They indicate why a chemical reaction (decompostion) must have occurred during the experiement. Pupils explain why yeast was used. Students comprehend the...
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Periodic Table I Quiz
In this periodic table I quiz, students select the best answer to the given questions. Students apply their knowledge of the periodic table and the arrangement to correctly answer the questions presented.
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Elements
In this elements worksheet, students give the symbol for given elements. Students determine the number of protons, electrons, and neutrons for atoms. This worksheet has 9 fill in the blank and 5 problems to solve.
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Organic Compounds
In this organic compounds activity, students practice identifying chemical structures and compare sugars, starches, and lipids. This activity has 5 matching and 15 multiple choice questions.
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Chemical Compounds
For this chemical compounds worksheet, students identify the types of intermolecular forces present in the given substances, calculate the heat required to convert a liquid to gas, and explain the ideal-gas law. This worksheet has 5...
Creative Chemistry
Making Ammonia - The Haber Process
In this fertilizer worksheet, high schoolers read background information about how farmers began using nitrogen compounds as fertilizer and how Fritz Haber developed an efficient process. Based on their reading, students complete 10...
Creative Chemistry
Air Pollution
For this pollution worksheet, students read about how air pollution is created and the harmful products from car exhausts. Then, they complete nine short answer questions.
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