Classroom Resources: Reactions & Stoichiometry
26 – 50 of 82 Classroom Resources
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Chemical Change, Reaction Rate, Reaction Rate, Phase Changes | 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.
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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
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
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Limiting Reactant, Chemical Change, 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
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 | 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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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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Calorimetry, Exothermic & Endothermic, Temperature, Stoichiometry, Limiting Reactant, Chemical Change, Molarity | 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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Chemical Change, Classification of Reactions, Balancing Equations | 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 | 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 | 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 | 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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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 | 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.
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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.