101 – 125 of 133 Classroom Resources

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

  Lab: Finding the Formula of Magnesium Oxide Mark as Favorite (23 Favorites)

  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

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

  Lab: Finding CO₂ Mass in your Breath Mark as Favorite (37 Favorites)

  In this lab, students will measure how much carbon dioxide they exhale by reacting their exhaled breath with limewater (calcium hydroxide solution). Students will practice writing balanced equations and completing mass-to-mass stoichiometric calculations.

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

  Lesson Plan: Redesigning a Car for the Environment Mark as Favorite (26 Favorites)

  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.

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  Classification of Reactions, Oxidation, Reduction, Percent Yield, Stoichiometry, Chemical Change, Redox Reaction, Activity Series, Error Analysis, Dimensional Analysis, Mole Concept, Measurements | High School

  Lab: Extracting Copper From Ore Mark as Favorite (16 Favorites)

  In this lab, students extract copper from copper carbonate using two different methods, and then determine which industrial method is most effective.

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  Conservation of Mass, Conservation of Matter, Chemical Change, Classification of Reactions, Percent Yield, Balancing Equations, Error Analysis, Accuracy, Chemical Change, Chemical Properties, Conservation of Mass, Conservation of Matter, Observations, Separating Mixtures | High School

  Lab: Reactions of Copper Mark as Favorite (13 Favorites)

  In this lab, students will convert copper metal into different copper compounds and then back to copper to illustrate conservation of matter.

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  Gas Laws, Matter, Density, Density, Temperature, Pressure, Volume, Graphing, Observations, Measurements | High School, Middle School

  Lab: Pressure Bottle Mark as Favorite (3 Favorites)

  In this lab, students determine the relationship between volume and pressure of a gas and its temperature and address the common misconception that air does not have mass or density.

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  Mole Concept | High School

  Activity: Popcorn Counting Unit Mark as Favorite (55 Favorites)

  In this activity, students develop a new method of counting objects, called the PCU, and compare this method to the concept of the mole.

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  Density, Error Analysis, Accuracy, Identifying an Unknown, Physical Properties, Accuracy, Error Analysis, Measurements, Significant Figures | High School, Middle School

  Lab: Determining the Density of Liquids and Solids Mark as Favorite (38 Favorites)

  In this lab, students will experimentally determine the density of several liquids and solids from mass and volume measurements. They will then identify an unknown metal by comparing its density to that of known metals and calculate the percent error within the class for a specific sample.

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  Percent Composition | High School, Middle School

  Lab: Percent Composition of M&M's Mark as Favorite (21 Favorites)

  In this lesson, students explore the idea of percent composition by investigating different varieties of M&M’s.

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  Percent Composition, Percent Composition, Mole Concept, Dimensional Analysis | High School

  Lab: Percent Composition of Bubble Gum Mark as Favorite (62 Favorites)

  In this lab, students will be introduced to the concept of percent composition. Students will determine the amount of sweetener in various brands of gum by determining the mass difference of the gum before and after it is chewed.

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  Percent Composition, Measurements | High School

  Lab: Percent Composition Mark as Favorite (18 Favorites)

  In this lab, students will calculate the percent composition of sugar in gum and the percent composition of water in popcorn kernels.

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  Percent Yield, Limiting Reactant, Stoichiometry, Dimensional Analysis | High School

  Activity: Cookie Stoichiometry Mark as Favorite (48 Favorites)

  In this activity, students use a chocolate chip cookie recipe to answer questions related to stoichiometry, percent yield, and limiting reactants.

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  Measurements, Percent Composition | High School

  Lab: Mineral Investigation Mark as Favorite (19 Favorites)

  In this lab, students will put their problem solving skills to work as a team to determine how many specific samples of ore can be made from a lode equivalent to the size of their classroom. This lab is perfect for the start of the school year to engage students in real-life applications of chemistry, as well as essential mathematic and measurement skills.

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  Density, Observations, Inferences, Measurements, Identifying an Unknown, Error Analysis, Scientific Method | High School

  Lab: Colors of the Rainbow Mark as Favorite (36 Favorites)

  In this lab, students will practice density calculations and put their calculations to test by creating their own density column.

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  Catalysts, Reaction Rate, Experimental Design, Scientific Method, Chemical Change, Error Analysis, Balancing Equations, Percent Yield, Stoichiometry, Chemical Change, Measurements, Error Analysis, Dimensional Analysis | High School

  Lesson Plan: Catalysis & Catalytic Converters Mark as Favorite (11 Favorites)

  In this lesson students will be introduced to catalysts while expanding their knowledge of chemical reactions and stoichiometry. They will first learn about catalytic converters and then be challenged to create the best “catalytic converter” of hydrogen peroxide to oxygen gas in an inquiry-based activity.

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  Mole Concept, Significant Figures, Dimensional Analysis, Measurements, Scientific Notation, Molar Mass, Molecular Formula | High School

  Activity: Can You Color A Mole? Mark as Favorite (90 Favorites)

  In this activity, students determine how many moles of paraffin are used when they color a piece of paper as well as how many molecules and moles of wax are in one crayon.

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  Mole Concept, Measurements, Dimensional Analysis, Molar Mass | High School

  Lab: Calculating Moles Mark as Favorite (69 Favorites)

  In this lab, students will have the opportunity to practice conducting the chemist’s way of counting atoms and molecules by using the mole. They will determine the mass of various common elements and compounds and convert this data into values of moles, atoms and molecules. This will allow students to realize the connection between commonly used laboratory chemicals and the quantitative data and calculations that are such a fundamental part of chemistry.

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  Mole Concept, Dimensional Analysis, Measurements | High School

  Activity: Bring Me A Mole Mark as Favorite (77 Favorites)

  In this lab, students take an abstract concept, the mole, and turn it into a real measurable concept.

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  Density, Dimensional Analysis, Review, Measurements, Accuracy, Accuracy, Experimental Design, Error Analysis | High School, Middle School

  Lab: Bowling Ball—Will it Sink or Float in Water? Mark as Favorite (7 Favorites)

  In this lab, students will find the density of a bowling ball to determine whether it will sink or float in water.

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  Isotopes, Atomic Mass, Measurements | High School

  Activity: Beanium Isotopes Mark as Favorite (46 Favorites)

  In this activity, students will determine the average atomic mass of a sample of an imaginary element called Beanium.

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  Stoichiometry, Percent Yield, Classification of Reactions, Balancing Equations, Chemical Change, Dimensional Analysis, Error Analysis, Measurements, Accuracy | High School

  Lab: Baking Soda Stoichiometry Mark as Favorite (54 Favorites)

  In this lab, students will decompose baking soda and use stoichiometry to determine the proper balanced chemical equation of its decomposition.

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  Chemical Change, Gas Laws, Stoichiometry, Balancing Equations, Volume, Dimensional Analysis, Mole Concept | High School

  Project: Air Bag Stoichiometry Mark as Favorite (121 Favorites)

  In this lab, students make real-world connections of stoichiometry with the design of car air bags.

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  Limiting Reactant, Acid Base Reactions, Stoichiometry, Indicators, pH, Dimensional Analysis, Mole Concept, Measurements, Concentration, Molarity | High School

  Lab: Acid/Base Stoichiometry Mark as Favorite (12 Favorites)

  In this lab, students experience a limiting reactant and can physically see the difference in amounts of product generated. They also see which reactant is in excess.

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  Titrations, Limiting Reactant, Acid Base Reactions, Indicators, Chemical Change, Equivalence Point, Stoichiometry, Balancing Equations, Chemical Change, Graphing, Error Analysis, Chemical Change, Error Analysis, Measurements, Concentration, Molarity | High School

  Lab: Acid-Base Mole Ratio Mark as Favorite (13 Favorites)

  In this lab, students study several concepts, including acid-base reactions, limiting reactants, and stoichiometry, by observing the contained reaction of acetic acid (diluted vinegar) with sodium hydrogen carbonate (baking soda) in an unconventional, cost effective titration.

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  Strong vs Weak, Titrations, Acid Base Reactions, Equivalence Point, Indicators, pH, Concentration, Molarity, Measurements | High School

  Lab: Acid Base Reactions Mark as Favorite (6 Favorites)

  In this lab, students will witness a reaction between an acid and base. One will be strong, and the other may be weak or strong--it's up to them to determine.