Classroom Resources: Reactions & Stoichiometry


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  • Phase Changes, Reaction Rate, Reaction Rate, Chemical Change | Elementary School

    Demonstration: Plop & Fizz Investigation

    In the demonstration the teacher will perform a reaction between water and Alka-Seltzer in order to generate the release of carbon dioxide. Students will observe the chemical reaction, while timing the release of carbon dioxide and observe 3 states of matter. This will be repeated 3 times, each time increasing the number of tablets used.

  • Chemical Change, Melting Point, Phase Changes, Physical Change, Chemical Change, Scientific Method | 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!

  • Observations, Chemical Change, Chemical Change, Oxidation | Elementary School

    Lab: Apple's Oxidation

    In this lab students will learn about the chemical reaction, oxidation, using apple wedges. They will apply different substances to a number of apple wedges to determine if these applications have any impact on the oxidation process. Students will also use a control sample so that they compare their results with an apple wedge that has not had any substance added to it. Students will measure and record the time it takes to see the changes to the apple which indicate oxidation. 3-46

  • Observations, Chemical Change, Conservation of Mass, Stoichiometry, Conservation of Mass, Limiting Reactant, Chemical Change | High School

    Demonstration: Understanding 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 balloons. 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.

  • Chemical Change, Physical Change, Chemical Change | High School, Middle 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.

  • Separating Mixtures, Chemical Change, Physical Change, Chemical Change, Exothermic & Endothermic | Elementary School

    Lab: Super Suds

    In this lab, students will investigate an endothermic chemical reaction by combining baking soda, hand soap and citric acid. The students will be tasked with differentiating between chemical and physical changes during this experiment.

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

  • Observations, Chemical Change, Chemical Change, Acid, Acid Base Reactions, Chemical Change | 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, Temperature, Exothermic & Endothermic, Activation Energy, Energy Diagrams, Bond Energy | High School, Middle School

    Simulation: 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.

  • Phase Changes, Conservation of Matter, 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, Chemical Change, Density, 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.

  • Acid Base Reactions, Balancing Equations, Percent Yield, Stoichiometry, Limiting Reactant, Chemical Change, Dimensional Analysis, pH, Error Analysis | 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, Calorimetry, Heat, Temperature, Exothermic & Endothermic, 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, Redox Reaction, Chemical Change, Exothermic & Endothermic | 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, Heat, Temperature, Exothermic & Endothermic | 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 | High School, Middle 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, Chemical Change, Precipitate, 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, Chemical Change, Reaction Rate, 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, Chemical Change, Density, Combustion, Chemical Change | Middle School, Elementary 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, Acid Base Reactions, Classification of Reactions, Chemical Change, Acid Rain, 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, Molecular Structure, Polymers, Chemical Change, Molecular Structure , Chemical Bond, 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, Chemical Change, Inferences, 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, Chemical Change, Physical 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.

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