Classroom Resources: Reactions & Stoichiometry


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51 – 75 of 179 Classroom Resources

  • Observations, Chemical Change, Physical Change, Chemical Change | Elementary School

    Demonstration: Make a Cake!

    In this demonstration, students will learn about chemical reactions by observing the differences when 4 small cakes are baked. Each recipe will differ slightly in that one important ingredient will be left out in 3 of the 4 mixtures. Students will observe and discuss what happens when things are missing or left out of a mixture and how that effects the chemical reaction.

  • Concentration, Solute & Solvent, Chemical Change | Middle School, Elementary School

    Demonstration: Soft Eggs

    In this demonstration, students will first observe a reaction between vinegar (acetic acid) and an egg shell (calcium carbonate) to produce a naked egg. Using these eggs, student will analyze how certain substances can move through a membrane and also determine if the membrane is affected.

  • Chemical Change, pH, 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.

  • Balancing Equations, Conservation of Mass | High School, Middle 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.

  • Mixtures, Reaction Rate, Chemical Change | 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.

  • Molecular Formula, Balancing Equations, Conservation of Mass | High School, Middle 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.

  • 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.

  • 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.

  • Physical Properties, Chemical Change, Physical Change, Chemical Change | 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.

  • 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.

  • Classification of Reactions, Heat, Temperature, Exothermic & Endothermic | High School, Middle 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.

  • Molecular Structure, Chemical Change | 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.

  • 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.

  • Naming Compounds, Molecular Formula, Covalent Bonding, Ionic Bonding, Stoichiometry, Classification of Reactions, Limiting Reactant | 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.

  • Chemical Change, Physical Change, Conservation of Mass, Chemical Change | High School, Middle 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.

  • Phase Changes, Reaction Rate, Reaction Rate, Chemical Change | 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.

  • 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.

  • 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.

  • Limiting Reactant, Dimensional Analysis | 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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