Classroom Resources: Reactions & Stoichiometry

51 – 75 of 127 Classroom Resources

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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, Observations, Chemical Change, Oxidation | Elementary School

  Demonstration: 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

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  Limiting Reactant, Chemical Change, Conservation of Mass, Stoichiometry, Chemical Change, Observations, Conservation of Mass | 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.

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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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  Chemical Change, Exothermic & Endothermic, Chemical Change, Physical Change, Separating Mixtures | 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.

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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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  Chemical Change, Chemical Change, Observations, Acid Base Reactions, Chemical Change, Acid | 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.

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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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  Polymers, Chemical Change, Conservation of Matter, Phase Changes | 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.

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  Chemical Change, Physical Change, Physical Properties | 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.

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  Combustion, Chemical Change, Chemical Change, Density, Kinetic Molecular Theory, Density | 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.

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  Limiting Reactant, Percent Yield, Stoichiometry, Balancing Equations, Chemical Change, Error Analysis, Dimensional Analysis, Acid Base Reactions, 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.

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  Limiting Reactant, Balancing Equations, Stoichiometry, Observations, Chemical Change | High School

  Lesson Plan: Observing the Limiting Reactant

  In this lesson, students will be introduced to the concept of limiting reactants by applying various literacy strategies to a one-page informational text and through a short demonstration (or lab). The reading and demo will help students create connections between the macroscopic, particulate, and symbolic representations of chemical reactions and limiting reactants.

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

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  Chemical Change, Exothermic & Endothermic, Redox Reaction, Reaction Rate | 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.

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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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  Chemical Change, Classification of Reactions, Balancing Equations, Observations, 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.

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

  Lab: Ions in Aqueous Solution Presentation

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

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  Reaction Rate, Chemical Change, Observations, Chemical Change, Reaction Rate, Catalysts | 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.

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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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  Acid Rain, Chemical Change, Acid Base Reactions, pH, Chemical Change, Classification of Reactions, Observations, Interdisciplinary | 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.

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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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  Limiting Reactant, Chemical Change, Conservation of Mass, Stoichiometry, Observations, Inferences, 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.

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  Density, Observations, Chemical Change, Physical Change, Balancing Equations, Chemical Change, Mixtures, Physical Change | 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.