Classroom Resources: Reactions & Stoichiometry
26 – 50 of 54 Classroom Resources
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Exothermic & Endothermic, Classification of Reactions | 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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Heat of Combustion, Heat, Exothermic & Endothermic, Combustion | Elementary School, Middle School, High School
Video: The Internal Combustion Engine Video
This video investigates both the mechanical and the chemical processes used in the internal combustion engine, as well as the history and evolution of the combustion engine.
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Reduction, Oxidation, Redox Reaction, Catalysts, Activation Energy, Combustion | Elementary School, Middle School, High School
Video: Catalytic Converters Video
This video investigates the role of a catalytic converter and its corresponding chemical reactions within a vehicle. Students will learn about both oxidation and reduction reactions and how they, in combination with a catalyst, can impact the molecules released in a car’s exhaust.
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Conservation of Mass, Exothermic & Endothermic | 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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Conservation of Mass, Balancing Equations, Limiting Reactant, Introduction, Conservation of Mass | Middle School, High School
Activity: Kinesthetic Reactions
In this lesson students, through their physical movement, will model the law of conservation of mass during a chemical reaction. Students will also explore the concepts of limiting and excess reactants as well as balancing a chemical equation. Through this activity they also develop a means of representing particles at the molecular level.
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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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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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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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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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Balancing Equations | High School, Middle School
Activity: Snowman Challenge
In this activity, students practice completing and balancing chemical equations with a partner.
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Reaction Rate, Chemical Change, Reaction Rate, Observations | Middle School, Elementary School, High School
Demonstration: Simple Kinetics
In this demonstration, students will see that different food dyes react with bleach at different rates.
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Chemical Change, Density, Chemical Change, Density | Elementary School, Middle School, High School
Demonstration: Fire Extinguisher
In this demonstration, students will observe a chemical reaction, and see how the product can be used to extinguish a fire.
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Chemical Change, Pressure, Reaction Rate, Acid Base Reactions, Chemical Change, Conservation of Matter | Elementary School, Middle School
Lab: Rocket Challenge
In this lab, students will have the opportunity to construct a rocket, with the challenges of both designing it and preparing a chemical reaction for its “fuel” in order to propel the rocket over the furthest distance. Students will investigate available materials, quantities and ratios during allotted planning and testing phases. Student will record their plans, modifications and designs during the process. The lab will culminate with a competition amongst students to see whose rocket will travel the longest distance.
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Chemical Change, Conservation of Matter, Identifying an Unknown, Culminating Project, Elements | Middle School
Lab: Priestley Labs
In this lab, students will identify an unknown gas based on experimental evidence.
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Precipitate, Chemistry Basics, Solubility Rules, Balancing Equations, Chemical Change, Chemical Change | High School, Middle School
Lab: Predicting Precipitates
In this lab, students use solubility rules to predict which chemical reactions will produce precipitates.
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Renewable Energy, Conservation of Mass, Chemical Change, Volume, Pressure | Middle School, High School
Lab: Power That Stinks
In this lab, students will experiment with creating and capturing biogas, and have an opportunity to look at how energy is created from waste. They will explore the differences between non-renewable and renewable energy sources.
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Reaction Rate, Reaction Rate, Acid Base Reactions | Middle School, High School
Lab: Plop, Fizz: How to Affect the Rate of a Chemical Reaction
In this lesson, students will react Alka-Seltzer tablets with water. By varying the temperature of the water, particle size of the Alka-Seltzer, and concentration of the Alka-Seltzer they can see the effect on the rate and strength of the chemical reaction.
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Exothermic & Endothermic, Chemical Change, Heat, Temperature, Classification of Reactions | Middle School, High School
Lab: Designing Exothermic and Endothermic Reactions
In this lab, students will design and test an experiment for producing either an endothermic or an exothermic reaction. The goal of the lab is for students to successfully construct a reproducible procedure for a reaction that either releases or absorbs thermal energy, and that can be supported with data.
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Chemical Change, Chemical Change | High School, Middle School
Lab: Corrosion in Motion
In this lab, students will expose metal samples to various solutions and observe the amount of corrosion of a period of time.
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Conservation of Mass, Chemical Change | High School, Middle School
Lab: Conservation of Mass
In this lab, students perform three simple experiments, recording the mass of a substance before and after a reaction. They then explain how the law of conservation of mass was not violated, even if the mass changed.
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Balancing Equations, Chemical Change, Observations | High School, Middle School
Lab: Chemical Reactions & Equations
In this lesson, students will observe a series of reactions, make observations, and then write balanced chemical equations to chemically describe what they observed.
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Chemical Change, Observations, Chemical Change, Reaction Rate, Interdisciplinary, Physical Change, Reaction Rate | Middle School
Lab: Chemical Weathering in Geology
In this lab, students will explore the differences between erosion, weathering and chemical weathering. They will complete a lab experiment that simulates chemical weathering on 4 different types of rocks. They will also learn how to use the Mohs Hardness Test to analyze the results.
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Chemical Change, Physical Change, Observations, Chemical Change, Interdisciplinary, Acid, Chemical Change | Middle School
Lab: Break It Down!
In this lab, students will examine the physical and chemical changes that take place within a landfill by composting leftover fruits and vegetables from their lunches. They will also record pH and temperature measurements during the process.
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Chemical Change, Classification of Reactions, Oxidation, Reduction, Redox Reaction, Electrons, Electron Transfer, Ions, Observations, Inferences, Chemical Change | Middle School
Lesson Plan: One Tube Reaction
In this lesson, students will observe a chemical change involving oxidation and reduction.