Classroom Resources: Reactions & Stoichiometry
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1 – 25 of 47 Classroom Resources
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Reaction Rate, Chemical Change, Reaction Rate, Observations | Middle School, Elementary School, High School
Demonstration: Simple Kinetics Mark as Favorite (58 Favorites)
In this demonstration, students will see that different food dyes react with bleach at different rates.
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Chemical Change, Pressure, Reaction Rate, Acid Base Reactions, Chemical Change, Conservation of Matter | Elementary School, Middle School
Lab: Rocket Challenge Mark as Favorite (7 Favorites)
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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Reaction Rate, Catalysts, Experimental Design, Chemical Change, Reaction Rate, Chemical Change | Middle School
Lesson Plan: Investigating Fast and Slow Reaction Rates Mark as Favorite (0 Favorites)
In this lesson, students will review the characteristics of chemical changes and then use a catalyst and an inhibitor to explore the reaction rate of the oxidation of iron.
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Exothermic & Endothermic, Temperature, Heat of Combustion, Chemical Change | Middle School
Lesson Plan: Chemical Volcanoes - A Tale of Two Reactions Mark as Favorite (0 Favorites)
In this lesson, students will use volcanoes as a vehicle to learn about the differences between endothermic and exothermic reactions by completing a hands-on activities and observing a teacher-led demonstration.
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Chemical Change, Chemical Change, Acid Base Reactions, Observations | Middle School, High School
Lab: How do Sinkholes Form? Mark as Favorite (45 Favorites)
In this lab students will learn how acidic groundwater reacts with limestone, causing it to erode. Sinkholes form when eroded limestone underneath the surface of the earth can no longer support the ground above it. Students will test how acid reacts with a variety of rocks and determine which rocks would be best to build a city on top of in order to reduce the chance of sinkholes forming.
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Chemical Change, Observations, Exothermic & Endothermic, Temperature, Chemical Change, Physical Change, Physical Properties | High School, Middle School
Lab: Observing a Chemical Reaction Mark as Favorite (26 Favorites)
In this lab, students will practice making careful observations and measurements while witnessing a chemical change.
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Balancing Equations, Conservation of Mass, Conservation of Matter, Conservation of Matter, Chemical Change, Chemical Change, Conservation of Mass, Polyatomic Ions, Precipitate | Middle School, High School
Activity: Simulation Activity: Balancing Chemical Equations Mark as Favorite (100 Favorites)
In this activity, students will learn how to count atoms and how to balance chemical equations using a simulation and games from PhET Interactive Simulations.
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Chemical Change, Exothermic & Endothermic | Elementary School, Middle School
Demonstration: Giant Toothpaste Mark as Favorite (23 Favorites)
In this demonstration, students will identify factors that indicate a chemical change has occurred while observing the production of giant toothpaste. This reaction uses simpler materials than those that are often used in the typical high school version of the Elephant’s toothpaste demonstration.
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Polymers, Polymers, Chemical Change, Chemical Bond | Middle School, High School
Demonstration: Turn Milk into Plastic Mark as Favorite (19 Favorites)
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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Chemical Change, Physical Change, Chemical Change, Scientific Method, Melting Point, Phase Changes | Middle School
Lab: S'more Change Please Mark as Favorite (10 Favorites)
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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Renewable Energy, Conservation of Mass, Chemical Change, Volume, Pressure | Middle School, High School
Lab: Power That Stinks Mark as Favorite (24 Favorites)
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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Chemical Change, Observations, Chemical Change, Reaction Rate, Interdisciplinary, Physical Change, Reaction Rate | Middle School
Lab: Chemical Weathering in Geology Mark as Favorite (2 Favorites)
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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Exothermic & Endothermic, Chemical Change, Heat, Temperature, Classification of Reactions | Middle School, High School
Lab: Designing Exothermic and Endothermic Reactions Mark as Favorite (20 Favorites)
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, Physical Change, Observations, Chemical Change, Interdisciplinary, Chemical Change | Middle School
Lab: Break It Down! Mark as Favorite (1 Favorite)
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, Molecular Structure | Middle School
Lab: Detecting Fats and Starches in Food Mark as Favorite (6 Favorites)
In this lab, students will identify fats and starches in a variety of foods. Since we eat many complex foods which contain mixtures of carbohydrates (e.g. sugars and starches), fats, and proteins, conducting food tests will enable the students to determine the make up of a certain food.
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Chemical Change, Chemical Change, Physical Change, Physical Properties | Middle School
Lab: Little Miss Muffet Investigation Mark as Favorite (16 Favorites)
In this lab, students will work in cooperative groups to conduct a chemical reaction by mixing vinegar with milk. This reaction will cause the curds to precipitate and separate from the liquid whey. The lesson can be extended by experimenting with different types of milk or by using different acids.
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Classification of Reactions, Chemical Change, Balancing Equations, Acid Base Reactions | Middle School, High School
Activity: Animation Activity: Classifying Chemical Reactions Mark as Favorite (56 Favorites)
In this activity, students will view an animation that explores some of the ways to classify different types of chemical reactions. The animation covers synthesis (combination), decomposition, single replacement (single displacement), double replacement (double displacement), combustion, and acid-base neutralization reactions.
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Classification of Reactions, Chemical Change, Balancing Equations, Acid Base Reactions, Combustion | Middle School, High School
Animation: Classifying Chemical Reactions Animation Mark as Favorite (49 Favorites)
This animation explores some of the ways to classify different types of chemical reactions. It covers synthesis (combination), decomposition, single replacement (single displacement), double replacement (double displacement), combustion, and acid-base neutralization reactions. This animation was featured in the November 2020 issue of Chemistry Solutions. **This video has no audio**
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Chemical Change, Chemical Change, Observations | Elementary School, Middle School
Lab: It's Alive Mark as Favorite (0 Favorites)
In this lab, students will practice making and recording observations, analyzing data, and identifying chemical change. They will transfer dirt, germs, and bacteria from their hands onto a piece of white bread and observe the changes that occur during the following days. Students will analyze the results, make comparisons between clean and dirty samples of bread and learn about the importance of hand-cleaning.
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Chemical Change, Error Analysis, History, Exothermic & Endothermic, Chemical Change | Middle School
Lesson Plan: The Chemistry of Casts Mark as Favorite (7 Favorites)
In this lesson, students will learn about the history of the chemistry involved in creating orthopedic casts. Students will then work in small groups to conduct a hands-on experiment in which they will determine the optimum plaster of Paris to water ratio for model casts.
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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 Mark as Favorite (96 Favorites)
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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Chemical Change, Phase Changes, Combustion, Observations | Elementary School, Middle School
Demonstration: The Jumping Flame Mark as Favorite (5 Favorites)
In this demonstration, students will observe that the vapor of an extinguished candle flame is ignitable.
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Density, Density, Chemical Change, Observations, Chemical Change, Combustion | Elementary School, Middle School
Demonstration: Investigating Gas Density Mark as Favorite (8 Favorites)
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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Chemical Change, Chemical Change, Observations | High School, Middle School
Lab: Corrosion in Motion Mark as Favorite (6 Favorites)
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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Chemical Change, Conservation of Matter, Identifying an Unknown, Culminating Project, Elements | Middle School
Lab: Priestley Labs Mark as Favorite (3 Favorites)
In this lab, students will identify an unknown gas based on experimental evidence.