Classroom Resources: Reactions & Stoichiometry


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26 – 50 of 78 Classroom Resources

  • 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

  • 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.

  • 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.

  • 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.

  • Molarity, Stoichiometry, Limiting Reactant, Chemical Change, Calorimetry, Temperature, Exothermic & Endothermic | 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.

  • 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.

  • 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.

  • Chemical Change, Acid Rain | 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.

  • Conservation of Mass, Limiting Reactant, Chemical Change | 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, Balancing Equations, Chemical 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.

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

    Demonstration: The Jumping Flame

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

  • Chemical Change, Interdisciplinary, Molecular Formula, Conservation of Mass, 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.

  • 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.

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

    Demonstration: Simple Kinetics

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

  • pH, Acid Base Reactions, Chemical Change, Acid Rain | High School

    Lab: Seeing the Effects of Acid Rain

    In this lesson, students will prepare an environment and make acid rain to see how the acid rain effects the items in the environment.

  • Percent Yield, Classification of Reactions, Limiting Reactant, Chemical Change | High School

    Demonstration: First Day Review

    In this demonstration, students see evidence of a chemical reaction.

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