401 – 425 of 530 Classroom Resources

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  Conservation of Mass, Conservation of Matter, Chemical Change, Classification of Reactions, Percent Yield, Balancing Equations, Error Analysis, Accuracy, Chemical Change, Chemical Properties, Conservation of Mass, Conservation of Matter, Observations, Separating Mixtures | High School

  Lab: Reactions of Copper Mark as Favorite (18 Favorites)

  In this lab, students will convert copper metal into different copper compounds and then back to copper to illustrate conservation of matter.

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  Conservation of Mass, Exothermic & Endothermic, Chemical Change, Heat, Temperature, Observations, Chemical Change | High School, Middle School

  Lab: Kitchen Reaction Mark as Favorite (18 Favorites)

  In this lab students will observe an endothermic chemical reaction involving baking soda (sodium bicarbonate) and vinegar (acetic acid). Students will investigate the signs a chemical reaction has occurred (gas production, change in temperature). Students will perform the lab in an open system so they can see the change of mass due to gas production. This lab is a lead into the topic of conservation of mass. After the lab is completed, the teacher should do a demonstration of the exothermic reaction Hydrogen peroxide and potassium iodide.

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  Stoichiometry, Gas Laws, Ideal Gas, Pressure, Volume, Temperature, Interdisciplinary | High School

  Lesson Plan: Mechanisms and Properties of Airbags Mark as Favorite (34 Favorites)

  In this lesson students will learn about the mechanisms and properties of airbags, and examine the choice of airbag inflator from several points of view.

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  Combustion, Limiting Reactant, Catalysts, Gas Laws, Stoichiometry, Activation Energy, Enthalpy, Energy Diagrams, Experimental Design | High School

  Lab: Launching Rockets Mark as Favorite (79 Favorites)

  In this lab, students create a stoichiometric mixture of hydrogen and oxygen gases to launch a soda bottle rocket.

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  Combustion, Chemical Change, Chemical Change, Density, Kinetic Molecular Theory, Density | High School

  Demonstration: Liquid and Gas Burning Comparison Mark as Favorite (7 Favorites)

  In this demo, students will witness the burning of a substance in its gas and in its liquid states. They will carry out the demonstrations themselves, and compare the results of the two reactions.

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  Combustion, Heat of Combustion, Stoichiometry, Balancing Equations, Dimensional Analysis, Interdisciplinary, Culminating Project | High School

  Lesson Plan: Redesigning a Car for the Environment Mark as Favorite (26 Favorites)

  Chemland’s city public transportation board has requested the class to help them determine the direction the city should move towards in reducing the carbon footprint. Students will be divided into groups and will come up with proposals of how to reduce the carbon footprint from carbon dioxide released from vehicles. The groups will represent different ways to reduce the carbon footprint via an alternative fuel source or a new technology. They will debate their findings to determine the direction that the city council should move towards to reduce the carbon footprint.

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  Combustion, Chemical Change, Catalysts, Acid Base Reactions, Chemical Change, Balancing Equations, Classification of Reactions, Observations, Chemical Change | High School, Middle School

  Demonstration: Stop & Go Gases Mark as Favorite (8 Favorites)

  In this demonstration, students will witness the ability of carbon dioxide to extinguish a flame and oxygen to feed a flame. They will also be introduced to the concept of catalysts. This demonstration could also be used as an opportunity to practice writing and balancing equations and classifying chemical reactions.

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  Balancing Equations, Chemical Change, Observations | High School, Middle School

  Lab: Chemical Reactions & Equations Mark as Favorite (50 Favorites)

  In this lesson, students will observe a series of reactions, make observations, and then write balanced chemical equations to chemically describe what they observed.

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  Electrostatic Forces, Subatomic Particles, Electrons, Electricity, Electrons, Graphing | High School

  Lab: Electromagnetic Forces in the Atom Mark as Favorite (6 Favorites)

  In this lab, students will better understand that opposite charges attract each other, and like charges repel.

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  Model of the Atom, Periodic Table, Subatomic Particles, Electrons, Valence Electrons, Ions | High School, Middle School

  Lab: Sweet Model of the Atom Mark as Favorite (65 Favorites)

  In this lesson, students will use different candies to represent electrons, protons, and neutrons to gain a better understanding of atoms, ions, and isotopes.

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  Atomic Spectra, Activity Series, Emission Spectrum, Ions, Electromagnetic Spectrum, Emission Spectrum, Observations, Inferences | High School

  Lab: Flame Test: Going Further Mark as Favorite (64 Favorites)

  In this lab, students will investigate the colors produced when several mixtures of metallic ions are placed in a flame.

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  Atomic Theory, History, Interdisciplinary, Culminating Project, Model of the Atom | High School, Middle School

  Activity: Scientist Infographic Mark as Favorite (50 Favorites)

  In this activity, students will design and publish an infographic focused on a well-known scientist and their contribution to the development of the atomic model.

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  Isotopes, Atomic Mass, Subatomic Particles, Experimental Design | High School

  Lab: Isotopes Make Cents Mark as Favorite (43 Favorites)

  In this lab, students use a sample of pennies to mimic how average atomic mass is calculated.

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  Le Châtelier's Principle, Establishing Equilibrium, Reversible Reactions, Reaction Rate, Equilibrium Constants, Graphing | High School

  Lab: Dynamic Equilibrium Simulation Mark as Favorite (34 Favorites)

  In this lab, students will explore equilibrium using paper clips to mimic a chemical reaction.

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  Net Ionic Equation, Chemical Change, Solubility Rules, Solubility, Precipitate, Balancing Equations, Chemical Change | High School

  Lab: Ions in Aqueous Solution Presentation Mark as Favorite (36 Favorites)

  In this lab, students will mix ionic solutions to determine what combinations form precipitates.

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  Colligative Properties, Specific Heat, Freezing Point Depression, Solute & Solvent, Concentration, Heat, Temperature, Calorimetry, Error Analysis | High School

  Lesson Plan: The Hot and Cold of it All Mark as Favorite (14 Favorites)

  In this lesson students will analyze the effectiveness of different brands of antifreeze/coolants and their ability to protect an engine in cold climates. Students will conduct a lab investigation to examine the freezing point depression in samples that have been diluted with distilled water. Students will also determine the specific heat capacities of antifreeze/coolant products as compared to pure water and explain how it relates to thermal energy transfer in the internal combustion engine.

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  Colligative Properties, Boiling Point, Molality, Concentration, Boiling Point Elevation, Graphing, Accuracy, Physical Properties, Error Analysis | High School

  Lab: Changing Water's Boiling Point Mark as Favorite (25 Favorites)

  In this lab, students will explore colligative properties in a quantitative approach. They will measure the effect of increasing the molality of a salt solution on the solution’s boiling point, and they will graph their data and use the slope of the line of best fit to calculate the boiling point elevation constant of water. There are three versions of the lab, some of which provide more structure and guidance and others of which are more student-driven.

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  Solubility, Intermolecular Forces, Intermolecular Forces, Mixtures, Intramolecular Forces, Polarity, Observations, Physical Properties, Chemical Properties, Identifying an Unknown, Mixtures | High School

  Lab: Solubility & Compound Type Mark as Favorite (43 Favorites)

  In this lesson, students determine whether unknown substances are polar, nonpolar, or ionic by testing their solubilities.

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  Intermolecular Forces, Mixtures, Intermolecular Forces, Colligative Properties, Freezing Point Depression, Solubility, Polarity, Phase Changes, Freezing Point, Density, Mixtures, Physical Properties | High School

  Lesson Plan: Fuel Line Antifreeze Mark as Favorite (14 Favorites)

  In this lesson students will explore the role of a gasoline additive, fuel line antifreeze (generally methanol or 2‑propanol), in reducing the potential of water to block fuel lines in freezing weather. Students will prepare test tube models of water-contaminated fuel tanks and explore the effect of adding different types of fuel line antifreeze. This lesson can be used to bolster concepts about miscibility, density, intermolecular forces, phase changes (freezing), and colligative properties (freezing point depression).

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  Intermolecular Forces, Solute & Solvent, Scientific Method | High School

  Lab: Exploring Intermolecular Forces Mark as Favorite (27 Favorites)

  In this lab, students will investigate the idea that “like dissolves like” by discovering which liquids are best suited for dissolving various substances. This can serve as a great inquiry lab prior to teaching intermolecular forces.

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  Catalysts, Reaction Rate, Experimental Design, Scientific Method, Chemical Change, Error Analysis, Balancing Equations, Percent Yield, Stoichiometry, Chemical Change, Measurements, Error Analysis, Dimensional Analysis | High School

  Lesson Plan: Catalysis & Catalytic Converters Mark as Favorite (12 Favorites)

  In this lesson students will be introduced to catalysts while expanding their knowledge of chemical reactions and stoichiometry. They will first learn about catalytic converters and then be challenged to create the best “catalytic converter” of hydrogen peroxide to oxygen gas in an inquiry-based activity.

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  Reaction Rate, Graphing, Temperature, Concentration | High School, Middle School

  Lab: Starch-Iodine Clock Reaction Mark as Favorite (74 Favorites)

  In this lab, students perform an iodine clock reaction to determine how concentration and temperature effect the reaction rate.

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  Reaction Rate, Order of Reaction , Graphing | High School

  Lab: Kinetic Approach to Water Flow Mark as Favorite (10 Favorites)

  This lab uses the principles of chemical kinetics without using a chemical reaction. It’s an effective means to introduce the important relationship between concentration and time at an introductory level. Students will have the opportunity to analyze data and make important connections through graphing their data.

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  Reaction Rate, Experimental Design, Scientific Method, Observations, Chemical Change | High School, Middle School

  Lab: Reaction Rate Mark as Favorite (25 Favorites)

  In this lab, students will explore factors that effect reaction rate and develop a general statement that describes how the factors (temperature, particle size, and concentration) effect the rate based on experimental data. This is an inquiry-based activity.

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  Pharmaceuticals, Functional Groups, Identifying an Unknown, Chemical Properties, Observations | High School

  Lab: Over the Counter Drugs Mark as Favorite (42 Favorites)

  In this lab, students will do some research about common over the counter drugs and then carry out some chemical tests to learn more about their composition. They will then identify an unknown drug sample.