Classroom Resources: Reactions & Stoichiometry


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51 – 75 of 120 Classroom Resources

  • Observations, Acid, Chemical Change, Chemical Change, Chemical Change, Acid Base Reactions | Elementary School

    Lesson Plan: The Chemistry of Eggs

    In this lesson students will learn that vinegar can react with the Calcium in an egg shell to make it rubbery. First, the students will listen to the teacher read a book about eggs. The teacher will then put an egg in a jar with vinegar and let it set for two days. Students will make a prediction about what they think will happen to the egg, and then together they will investigate the final results.

  • Classification of Reactions, Chemical Change, Exothermic & Endothermic, Temperature, Activation Energy, Energy Diagrams, Bond Energy | 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.

  • Conservation of Matter, Phase Changes, Polymers, Chemical Change | Elementary School

    Lesson Plan: Making Slime

    In this lesson, students explore the science behind chemical reactions as well as the processes used by chemical engineering principles to develop new materials. The idea that mixing two substances can result in an explosion, the release of gas, and the formation of an entirely new substance is both fascinating and mysterious to most young students.

  • Physical Properties, Physical Change, Chemical Change | Elementary School

    Lab: What's the Fizz?

    In this lab, students will make a lemon fizzy drink. Students will discuss what happens when things are mixed together.

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

    Demonstration: Liquid and Gas Burning Comparison

    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.

  • Balancing Equations, Percent Yield, Stoichiometry, Limiting Reactant, Chemical Change, Dimensional Analysis, Acid Base Reactions, Error Analysis, pH | High School

    Lab: Limiting Reactant in a Balloon

    In this lab, students perform a reaction between acetic acid and sodium bicarbonate and determine the amount of product formed and the limiting reactant.

  • Concentration, Molarity, Stoichiometry, Limiting Reactant, Chemical Change, Exothermic & Endothermic, Calorimetry, Heat, Temperature, Scientific Method, Enthalpy, Experimental Design | High School

    Lab: Less Than Zero

    In this lab, students will investigate the endothermic reaction between baking soda and HCl. Students will consider stoichiometric ratios, molar concentrations, reaction scale, and calorimetry. The lab starts with a scripted reaction that uses given molar ratios, a glass beaker, and 2-M HCl. They will witness a temperature drop of about 5 to 8 C. Students then adjust the experiment so they can achieve a temperature drop of more than 20 C.

  • Reaction Rate, Chemical Change, Exothermic & Endothermic, Redox Reaction | High School

    Demonstration: Potassium Permanganate Demo

    In this demo, students witness two chemicals that take some time to react. The KMnO4 and glycerin come into contact and appear not to react, but then a flame results. This is an example of an exothermic redox reaction.

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

  • Observations, Chemical Change, Balancing Equations, Classification of Reactions, Chemical Change | High School

    Lab: It's Time to React

    In this lab, students will conduct four chemical reactions and analyze each for indicators of a chemical reaction. Based on their observations students will write a balanced chemical equation for each reaction as well as identify the reaction type for each reaction.

  • 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.

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

    Lab: Ions in Aqueous Solution Presentation

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

  • Observations, Reaction Rate, Chemical Change, Reaction Rate, Catalysts, Chemical Change | Elementary School

    Lab: To What DEGREE Does it Matter

    In this lab the students will explore how factors such as temperature may influence chemical reactions. Students will use citric acid and sodium bicarbonate (Alka-Seltzer) and a catalyst (water) to induce a reaction at varying degrees. Observations will be made of the rate at which the reactions take place under these varying conditions. The students will make predictions of how the temperature of the water will affect the chemical reaction. They will use a stop watch to time the reaction between the Alka-Seltzer and the varying temperatures of water and graph their observations for analysis, they will compare data to deduce whether temperature has any influence during a chemical reaction.

  • Observations, Density, Density, Chemical Change, Combustion, Chemical Change | 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.

  • Observations, Chemical Change, Interdisciplinary, Classification of Reactions, Chemical Change, Acid Rain, Acid Base Reactions, pH | High School

    Activity: Investigating Acid Rain

    In this activity, students will investigate the chemistry of acid rain through web based research. Students will also have the opportunity to observe the reaction between a common acid and a material in a week long simulation and relate their findings to the effects of acid rain.

  • Polymers, Polymers, Molecular Structure, Chemical Change, Chemical Bond, Molecular Structure , Monomer, 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.

  • Observations, Inferences, Chemical Change, Stoichiometry, Conservation of Mass, Limiting Reactant, Chemical Change, Exothermic & Endothermic | High School

    Demonstration: Introducing Limiting Reactants

    In this demonstration, the teacher will perform a series of reactions between acetic acid--vinegar-- and varying amounts of sodium bicarbonate --baking soda--in order to inflate several Ziploc bags. Students will observe the reactions and analyze the quantities of reactants used as well as the results in order to understand the concept of limiting reactants. Students will also determine if the reaction is an endothermic or exothermic process based on their observations.

  • Observations, Density, Physical Change, Chemical Change, Balancing Equations, Chemical Change, Physical Change, Mixtures | High School

    Lab: The Lovely Lava Lamp

    In this lab, students add food coloring to a mixture of oil and water and record their observations. They then add an Alka-Seltzer tablet, record their observations and answer a series of questions about the chemical and physical changes that took place.

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

    Demonstration: The Jumping Flame

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

  • Density, Gas Laws, Density, Pressure, Temperature, Chemical Change, Balancing Equations, Stoichiometry, Chemical Change, Kinetic Molecular Theory, Dimensional Analysis, Ideal Gas, Volume, Graphing | High School

    Lesson Plan: The Gas Laws Unit Plan

    The AACT high school classroom resource library and multimedia collection has everything you need to put together a unit plan for your classroom: lessons, activities, labs, projects, videos, simulations, and animations. We constructed a unit plan using AACT resources that is designed to teach the Gas Laws to your students.

  • Interdisciplinary, Conservation of Mass, Chemical Change, Molecular Formula, Balancing Equations, Conservation of Mass, Reversible Reactions, Chemical Change, Photosynthesis | 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.

  • Observations, Chemical Change, Chemical Change, Catalysts, Balancing Equations, Combustion, Classification of Reactions, Chemical Change, Acid Base Reactions | 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.

  • Chemical Change, Exothermic & Endothermic | High School

    Demonstration: Gun Cotton

    In this demo, students will witness a decomposition reaction of gun cotton; a smokeless flame results.

  • Precipitate, Conductivity, Classification of Reactions, Chemical Change | High School

    Demonstration: Sterno

    In this demonstration, students will observe a decomposition reaction that triggers a precipitate reaction that prevents a solution from conducting electricity.

  • Renewable Energy, Balancing Equations, Conservation of Mass, Chemical Change, Molecular Structure , Functional Groups | High School

    Lab: Soap or Fuel?

    In this lab, students will transform vegetable oil into a soft soap and into biodiesel fuel. The two reactions emphasize that the products of a chemical reaction are under the control of the chemist. By noting the relationship of the reaction product to the reactants, students will gain a deeper understanding of the law of conservation of matter.

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