Classroom Resources: Reactions & Stoichiometry

26 – 50 of 69 Classroom Resources

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  Exothermic & Endothermic, Heat, Temperature, Classification of Reactions | Middle School, High School

  Lab: Determining Endothermic and Exothermic Reaction

  In this lab, students will analyze evidence to determine if a chemical reaction releases energy and can be classified as an exothermic reaction or if it absorbs energy and can be classified as an endothermic reaction.

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  Chemical Change, Molecular Structure | Middle School

  Lab: Detecting Fats and Starches in Food

  In this lab, students will identify fats and starches in a variety of foods. Since we eat many complex foods which contain mixtures of carbohydrates (e.g. sugars and starches), fats, and proteins, conducting food tests will enable the students to determine the make up of a certain food.

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  Photosynthesis | Middle School

  Lab: The Chemical Process of Photosynthesis

  In this lab, students will rotate through five stations to understand the importance of the reactants required for the process of photosynthesis in a plant. They will also create the chemical equation for the photosynthesis reaction.

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  Chemical Change, Conservation of Mass, Chemical Change, Physical Change | Middle School, High School

  Lab: Chemistry in a Bag

  In this lab, students will observe and identify chemical and physical changes contained inside a plastic bag. Students will also use this lab to understand the Law of Conservation of Mass.

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  Chemical Change, Physical Change, Chemical Change, Scientific Method, Melting Point, Phase Changes | Middle School

  Lab: S'more Change Please

  In this lab, students will be able to demonstrate the difference between a physical and chemical change by making ooey, gooey, yet yummy S’mores!

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  Chemical Change, Physical Change, Chemical Change | Middle School, High School, Elementary School

  Lab: Chemical and Physical Changes

  In this lab, students will observe and analyze a number of examples in order to determine if a chemical or physical change occurred.

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  Conservation of Mass, Chemical Change, Interdisciplinary, Culminating Project, Phase Changes, Chemical Change | Middle School, High School

  Project: Law of Conservation of Mass Comic Strip

  In this project, students will work in groups to create a comic strip that illustrates understanding of the law of conservation of mass.

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  Exothermic & Endothermic, Classification of Reactions, Energy Diagrams, Bond Energy, Activation Energy, Temperature, Chemical Change | Middle School, High School

  Activity: Simulation Activity: Energy Changes in Chemical Reactions

  In this simulation, students will evaluate the energy changes in an endothermic and an exothermic chemical reaction. Through the use of this simulation students will have the opportunity to compare how energy is absorbed and released in each reaction. Additionally, students will make a connection between the standard energy diagrams associated with each reaction type.

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  Heat of Combustion, Heat, Exothermic & Endothermic, Combustion | Elementary School, Middle School, High School

  Video: The Internal Combustion Engine Video

  This video investigates both the mechanical and the chemical processes used in the internal combustion engine, as well as the history and evolution of the combustion engine.

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  Reduction, Oxidation, Redox Reaction, Catalysts, Activation Energy, Combustion | Elementary School, Middle School, High School

  Video: Catalytic Converters Video

  This video investigates the role of a catalytic converter and its corresponding chemical reactions within a vehicle. Students will learn about both oxidation and reduction reactions and how they, in combination with a catalyst, can impact the molecules released in a car’s exhaust.

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

  Lab: Kitchen Reaction

  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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  Conservation of Mass, Balancing Equations, Limiting Reactant, Introduction, Conservation of Mass | Middle School, High School

  Activity: Kinesthetic Reactions

  In this lesson students, through their physical movement, will model the law of conservation of mass during a chemical reaction. Students will also explore the concepts of limiting and excess reactants as well as balancing a chemical equation. Through this activity they also develop a means of representing particles at the molecular level.

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  Polymers, Polymers, Chemical Change, Chemical Bond | Middle School, High School

  Demonstration: Turn Milk into Plastic

  In this demonstration, students will observe the process of making a polymer, casein plastic, from the casein protein found in milk.

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  Density, Density, Chemical Change, Observations, Chemical Change, Combustion | Elementary School, Middle School

  Demonstration: Investigating Gas Density

  In this demonstration, students will observe a reaction between baking soda and vinegar in the presence of a burning candle. The initial environment has plenty of oxygen present in order to sustain the candle’s flame; however the reaction will produce carbon dioxide which will cause the lit candle to extinguish. Students will analyze the outcome and compare the presence of the gases in the container and make determinations about the densities of each.

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  Review, Subatomic Particles, Ions, Isotopes, Electrons, Atomic Mass, Lewis Dot Diagrams, Model of the Atom, Balancing Equations | High School, Middle School

  Activity: Tic-Tac-Toe Review

  In this activity students collaborate to complete tic-tac-toe review questions to prepare for a test on the atomic structure unit. The idea behind the activity is to give students choice and you can read more about the inspiration for the activity in the May issue of Chemistry Solutions.

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  Polymers, Molecular Structure, Molecular Structure , Monomer, Chemical Bond, Chemical Change, Polymers, Monomer | Middle School

  Lesson Plan: The Power of Polymers

  In this lesson students will use lab activities and discussion to explore polymers and their use in 3D printing, with an emphasis on the benefits of 3D printing in automotive manufacturing.

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  Chemical Change, Phase Changes, Combustion, Observations | Elementary School, Middle School

  Demonstration: The Jumping Flame

  In this demonstration, students will observe that the vapor of an extinguished candle flame is ignitable.

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  Photosynthesis, Conservation of Mass, Balancing Equations, Chemical Change, Reversible Reactions, Molecular Formula, Interdisciplinary, Chemical Change, Conservation of Mass | Middle School

  Lesson Plan: The Building Blocks of Photosynthesis

  In this lesson, students will use colored blocks to represent the elements in photosynthesis and illustrate how they are broken down and reassembled to create glucose.

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

  Demonstration: Stop & Go Gases

  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, Predicting Products | High School, Middle School

  Activity: Snowman Challenge

  In this activity, students practice completing and balancing chemical equations with a partner.

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  Reaction Rate, Chemical Change, Reaction Rate, Observations | Middle School, Elementary School, High School

  Demonstration: Simple Kinetics

  In this demonstration, students will see that different food dyes react with bleach at different rates.

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  Chemical Change, Density, Chemical Change, Density | Elementary School, Middle School, High School

  Demonstration: Fire Extinguisher

  In this demonstration, students will observe a chemical reaction, and see how the product can be used to extinguish a fire.

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  Chemical Change, Pressure, Reaction Rate, Acid Base Reactions, Chemical Change, Conservation of Matter | Elementary School, Middle School

  Lab: Rocket Challenge

  In this lab, students will have the opportunity to construct a rocket, with the challenges of both designing it and preparing a chemical reaction for its “fuel” in order to propel the rocket over the furthest distance. Students will investigate available materials, quantities and ratios during allotted planning and testing phases. Student will record their plans, modifications and designs during the process. The lab will culminate with a competition amongst students to see whose rocket will travel the longest distance.

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  Chemical Change, Conservation of Matter, Identifying an Unknown, Culminating Project, Elements | Middle School

  Lab: Priestley Labs

  In this lab, students will identify an unknown gas based on experimental evidence.

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  Precipitate, Chemistry Basics, Solubility Rules, Balancing Equations, Chemical Change, Chemical Change | High School, Middle School

  Lab: Predicting Precipitates

  In this lab, students use solubility rules to predict which chemical reactions will produce precipitates.