# Classroom Resources: Reactions & Stoichiometry

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126 – 150 of 205 Classroom Resources

• Chemical Change, Interdisciplinary, Molecular Formula, Conservation of Mass, Balancing Equations, Conservation of Mass, Reversible Reactions, Chemical Change, Photosynthesis | 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.

• Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis | High School

### Activity: Sweet Stoichiometry Reactions

In this activity, students will use candy to investigate stoichiometry and mole-gram relationships in chemical equations, but could also be used to introduce the concept of limiting reactants.

• Stoichiometry, Mole Concept, Dimensional Analysis | High School

### Lesson Plan: How to do Stoichiometry Problems

In this lesson, students learn templates for performing stoichiometry problems. They then put the methods to the test with a practice worksheet.

• Combustion, Accuracy, Dimensional Analysis, Measurements, Calorimetry, Heat, Specific Heat, Temperature, Exothermic & Endothermic, Heat of Combustion, Law of Conservation of Energy, Bond Energy, Error Analysis | High School

### Lab: How Much Energy is in Your Snack Food?

In this lab, students will find the amount of heat energy stored in foods and compare heat calories with food calories.

• Chemical Change, Catalysts, Acid Base Reactions, Combustion, Chemical Change | High School

### Demonstration: Stop & Go Gases

In this demonstration, students will witness the ability of carbon dioxide to extinguish a flame and oxygen to feed a flame.

• Gas Laws, Concentration, Molarity, Electrolysis, Stoichiometry, Mole Concept, Dimensional Analysis, Ideal Gas, Electrons | High School

### Lesson Plan: Stoichiometry Set-up Method

In this lesson, students will learn how to follow a process of visual cues in combination with a step-by-step problem solving method for different types of stoichiometric problems. This method can be particularly beneficial for students who struggle with completing multi-step calculations.

• Chemical Change, Exothermic & Endothermic | High School

### Demonstration: Gun Cotton

In this demo, students will witness a decomposition reaction of gun cotton; a smokeless flame results.

• Precipitate, Conductivity, Classification of Reactions, Chemical Change | High School

### Demonstration: Sterno

In this demonstration, students will observe a decomposition reaction that triggers a precipitate reaction that prevents a solution from conducting electricity.

• Concentration, Solute & Solvent, Molarity, Stoichiometry, Mole Concept, Dimensional Analysis, Tyndall Effect | High School

### Activity: Solubility & Solutions

In this inquiry activity, students investigate types of solutions, identifying the solute and solvent, and classifying each solution. They them solve stoichiometry problems involving solutions of different concentrations.

• Balancing Equations, Classification of Reactions | High School

### Lesson Plan: Geometric Equations Challenge

In this lesson plan, students find patterns in the reactions between several geometric shapes and then learn about the five main types of reactions.

• Renewable Energy, Balancing Equations, Conservation of Mass, Chemical Change, Molecular Structure , Functional Groups | High School

### Lab: Soap or Fuel?

In this lab, students will transform vegetable oil into a soft soap and into biodiesel fuel. The two reactions emphasize that the products of a chemical reaction are under the control of the chemist. By noting the relationship of the reaction product to the reactants, students will gain a deeper understanding of the law of conservation of matter.

• Balancing Equations, Predicting Products | Middle School, High School

### Activity: Snowman Challenge

In this activity, students practice completing and balancing chemical equations with a partner.

• Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis, Measurements | High School

### Activity: S'more Stoichiometry

In this activity, students determine the number of graham crackers and chocolate pieces required to complete a “reaction” with a given quantity of marshmallows (the limiting reactant). They then use the same thought process with a problem involving a real chemical reaction.

• Observations, Reaction Rate, Reaction Rate, Chemical Change | High School, Elementary School, Middle School

### Demonstration: Simple Kinetics

In this demonstration, students will see that different food dyes react with bleach at different rates.

• Reduction, Redox Reaction, Classification of Reactions, Chemical Change, Functional Groups | High School

### Lab: Silver Test Tube Holiday Ornament

In this lab, students will carry out a reduction reaction in order to create a silver-plated test tube that can be used as a holiday ornament.

• Chemical Change, Concentration, Acid Base Reactions, Molarity, Chemical Change, Indicators, Acid Rain, pH, Equivalence Point | High School

### Lab: Seeing the Effects of Acid Rain

In this lesson, students will prepare an environment and make acid rain to see how the acid rain effects the items in the environment.

• Observations, Separating Mixtures, Physical Properties, Intermolecular Forces, Polarity, Distillation, Cracking, Balancing Equations, Intermolecular Forces, Boiling Point | High School

### Lesson Plan: Fractional Distillation of Crude Oil

In this lesson, students will be introduced to simple distillation while expanding their knowledge of intermolecular forces. Once a simple distillation has been accomplished in the lab, students will then research the various products of fractional distillation of crude oil and report on one of those products.

• Observations, Density, Chemical Change, Lab Safety, Combustion | High School

### Demonstration: Fish Tank Carbon Dioxide

In this demonstration, students watch as a reaction between baking soda and vinegar produces carbon dioxide, which then causes lit candles to extinguish.

• Concentration, Molarity, Percent Yield, Stoichiometry, Classification of Reactions, Limiting Reactant, Mole Concept, Chemical Change, Dimensional Analysis | High School

### Demonstration: First Day Review

In this demonstration, students see evidence of a chemical reaction.

• Density, Chemical Change, Density, Chemical Change | High School, Middle School, Elementary 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.

• Chemical Change, Pressure, Conservation of Matter, Reaction Rate, Acid Base Reactions, Chemical Change | Middle School, Elementary 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.

• Molecular Formula, Law of Definite Proportions, Stoichiometry, Classification of Reactions, Mole Concept, Dimensional Analysis | High School

### Lab: Finding the Formula of Magnesium Oxide

In this lab, students will recognize that oxygen has mass and that heating can involve and increase in mass as an element reacts to become an oxide

• Balancing Equations, Reduction, Percent Yield, Redox Reaction | High School

### Lab: Reduction of Metal Oxides Using Carbon

In this lab, students reduce metal ores using an alternative apparatus to a traditional crucible.

• Concentration, Precipitate, Net Ionic Equation, Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis | High School

### Lab: Finding CO<sub>2</sub> Mass in your Breath

In this lab, students will measure how much carbon dioxide they exhale by reacting their exhaled breath with lime water (calcium hydroxide).

• Interdisciplinary, Culminating Project, Balancing Equations, Combustion, Stoichiometry, Dimensional Analysis, Heat of Combustion | High School

### Lesson Plan: Redesigning a Car for the Environment

Chemland’s city public transportation board has requested the class to help them determine the direction the city should move towards in reducing the carbon footprint. Students will be divided into groups and will come up with proposals of how to reduce the carbon footprint from carbon dioxide released from vehicles. The groups will represent different ways to reduce the carbon footprint via an alternative fuel source or a new technology. They will debate their findings to determine the direction that the city council should move towards to reduce the carbon footprint.