Classroom Resources: Reactions & Stoichiometry
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101 – 125 of 243 Classroom Resources
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Chemical Change, Chemical Change | Elementary School
Lab: Teeth Eggsperiment!
In this lab students will observe and analyze how different drinks can stain an egg’s shell. They will then associate the results with how these drinks can stain their teeth.
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Balancing Equations, Conservation of Mass | Middle School, High School
Activity: Balancing Legos
In this activity students use Legos to model the reactants and products in a chemical reaction. They use these “atoms” and “molecules” to balance the chemical reaction in order to demonstrate the law of conservation of matter.
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Chemical Change, Mixtures, Reaction Rate | Elementary School
Lab: The Disappearing Color
In this lab, students will create a solution to observe a chemical change between food coloring in water and bleach. They will also develop the process skills of predicting, observing, and measuring temperature.
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Balancing Equations, Conservation of Mass, Molecular Formula | Middle School, High School
Lesson Plan: Counting Atoms & Balancing Equations
In this lesson, students will learn how to count atoms and how to balance chemical equations using videos, simulations and games.
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Gas Laws, Stoichiometry | High School
Lab: Carbonate Identification
In this lab students use gas laws and stoichiometry, along with some balloons and simple measuring tools, to identify a metal carbonate from a short list of possibilities.
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Chemical Change, Exothermic & Endothermic | High School
Lab: Little Miss Muffet
In this lab, students make homemade glue from milk and compare it to commercial glue.
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Chemical Change, Chemical Change, Physical Change, Physical Properties | Middle School
Lab: Little Miss Muffet Investigation
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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Balancing Equations, Conservation of Mass, Photosynthesis | Middle School
Activity: Achieving a Photosynthetic Balance
In this activity, students will use candies to model the rearrangement of atoms from reactant to products during photosynthesis.
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Exothermic & Endothermic, Heat, Temperature, Classification of Reactions | Middle School, High School
Lab: Determining Endothermic and Exothermic Reaction
In this lab, students will analyze evidence to determine if a chemical reaction releases energy and can be classified as an exothermic reaction or if it absorbs energy and can be classified as an endothermic reaction.
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Chemical Change, Molecular Structure | Middle School
Lab: Detecting Fats and Starches in Food
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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Photosynthesis | Middle School
Lab: The Chemical Process of Photosynthesis
In this lab, students will rotate through five stations to understand the importance of the reactants required for the process of photosynthesis in a plant. They will also create the chemical equation for the photosynthesis reaction.
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Ionic Bonding, Covalent Bonding, Molecular Formula, Naming Compounds, Stoichiometry, Limiting Reactant, Classification of Reactions | High School
Activity: Isn't it Ionic
In this activity students will form ionic compounds and covalent compounds using clues and questions. Students are going to then develop their own stoichiometric problems and have other groups attempt to solve it.
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Chemical Change, Conservation of Mass, Chemical Change, Physical Change | Middle School, High School
Lab: Chemistry in a Bag
In this lab, students will observe and identify chemical and physical changes contained inside a plastic bag. Students will also use this lab to understand the Law of Conservation of Mass.
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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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Acid Base Reactions, Stoichiometry, Limiting Reactant | High School
Lab: Fizzy Drink
In this lab, students will learn the properties of acid and bases while applying the principles of stoichiometry to calculate the amount of base needed to neutralize an acid completely and produce a bubbly drink.
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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, 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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Limiting Reactant, Dimensional Analysis, Stoichiometry | High School
Lesson Plan: Map to Solving Limiting Reactant Problems
In this lesson, students will learn how to follow a step-by-step problem solving method for limiting reactant stoichiometry problems. This method can be particularly beneficial for students who struggle with completing these calculations.
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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.