Classroom Resources: Reactions & Stoichiometry
1 – 25 of 33 Classroom Resources
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Chemical Change, Conservation of Mass, Balancing Equations | Middle School, High School
Demonstration: Identifying Chemical Reactions
In this demonstration, students observe a series of teacher led demonstrations to learn how to identify evidence that a chemical reaction has occurred, how to write a word equation to explain a chemical reaction, and how to convert a word equation to a balanced chemical equation.
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Chemical Change, Chemical Change, Acid Base Reactions, Observations | Middle School, High School
Lab: How do Sinkholes Form?
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, Chemical Change, Observations | Elementary School, Middle School
Lab: It's Alive
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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Reaction Rate, Reaction Rate, Chemical Change, Acid Base Reactions | Middle School
Lab: Bath Bomb Chemistry!
In this lab, the students will work in cooperative groups to investigate how to make a scented, effervescent bath bomb and explore the chemistry needed to create them. Groups will test a variety of different variables in order to compare the reaction rate of each sample. Students will use the results to determine which variables are optimal for making and using bath bombs.
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Reaction Rate, Reaction Rate, Chemical Change | Middle School, High School
Demonstration: Comparing Rates of Reaction
In this demonstration, students observe the effect of temperature, concentration, and particle size on the rate of a chemical reaction.
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Chemical Change, Exothermic & Endothermic | Elementary School, Middle School
Demonstration: Giant Toothpaste
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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Classification of Reactions, Chemical Change, Catalysts, Observations | Middle School, High School
Demonstration: Catalyst in Motion
This demonstration allows students to visualize how a catalyst can impact a chemical reaction. Students will also identify the products of a decomposition reaction, as well as determine if the reaction was endothermic or exothermic based on their observations.
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Concentration, Solute & Solvent, Chemical Change | Elementary School, Middle 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.
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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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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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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, 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, 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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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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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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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.