101 – 125 of 132 Classroom Resources

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  Colligative Properties, Specific Heat, Freezing Point Depression, Solute & Solvent, Concentration, Heat, Temperature, Calorimetry, Error Analysis | High School

  Lesson Plan: The Hot and Cold of it All Mark as Favorite (13 Favorites)

  In this lesson students will analyze the effectiveness of different brands of antifreeze/coolants and their ability to protect an engine in cold climates. Students will conduct a lab investigation to examine the freezing point depression in samples that have been diluted with distilled water. Students will also determine the specific heat capacities of antifreeze/coolant products as compared to pure water and explain how it relates to thermal energy transfer in the internal combustion engine.

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  Identifying an Unknown, Culminating Project, Classification of Reactions, Experimental Design, Scientific Method, Interdisciplinary, Review, Balancing Equations, Stoichiometry, Concentration, Molarity | High School

  Lab: The Culminating Unknown Mark as Favorite (34 Favorites)

  In this lab, students identify an unknown from a list of 12 possible compounds by designing a procedure and using evidence to prove their claim. They must draw from knowledge gained throughout the year to properly develop a procedure to identify the unknown.

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  Conductivity, Covalent Bonding, Ionic Bonding | High School

  Lab: Strong and Weak Electrolytes Mark as Favorite (16 Favorites)

  In this lab, students will analyze the conductivity of several common household solutions using a light emitting conductivity diode tester to determine if the solution is a strong or weak electrolyte. Students will interpret the brightness of the lightbulb to determine the strength of the electrolyte. Students will also have an opportunity to consider the connection between conductivity and bond type during this lab.

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

  Lesson Plan: Stoichiometry Set-up Method Mark as Favorite (65 Favorites)

  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.

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  Heat of Neutralization, Acid Base Reactions, Exothermic & Endothermic, Temperature, Specific Heat, Calorimetry, Bond Energy, Net Ionic Equation, Molarity, Dimensional Analysis, Measurements, Mole Concept | High School

  Lab: Heat of Neutralization Mark as Favorite (11 Favorites)

  In this lab, students carry out an acid-base reaction to calculate the heat of neutralization based on experimental data. This lab will reinforce the concepts of exothermic and endothermic processes, system and surroundings, and heat of reaction (specifically, neutralization).

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

  Demonstration: Sterno Mark as Favorite (1 Favorite)

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

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

  Activity: Solubility & Solutions Mark as Favorite (21 Favorites)

  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.

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  Solubility, Intermolecular Forces, Intermolecular Forces, Mixtures, Intramolecular Forces, Polarity, Observations, Physical Properties, Chemical Properties, Identifying an Unknown, Mixtures | High School

  Lab: Solubility & Compound Type Mark as Favorite (38 Favorites)

  In this lesson, students determine whether unknown substances are polar, nonpolar, or ionic by testing their solubilities.

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  Intermolecular Forces, Mixtures, Intermolecular Forces, Colligative Properties, Freezing Point Depression, Solubility, Polarity, Phase Changes, Freezing Point, Density, Mixtures, Physical Properties | High School

  Lesson Plan: Fuel Line Antifreeze Mark as Favorite (11 Favorites)

  In this lesson students will explore the role of a gasoline additive, fuel line antifreeze (generally methanol or 2‑propanol), in reducing the potential of water to block fuel lines in freezing weather. Students will prepare test tube models of water-contaminated fuel tanks and explore the effect of adding different types of fuel line antifreeze. This lesson can be used to bolster concepts about miscibility, density, intermolecular forces, phase changes (freezing), and colligative properties (freezing point depression).

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

  Lab: Seeing the Effects of Acid Rain Mark as Favorite (17 Favorites)

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

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  Galvanic Cells, Reduction, Oxidation, Half Reactions, Cathode, Anode, Redox Reaction, Electrons, Electron Transfer, Net Ionic Equation, Error Analysis | High School

  Lab: Four-Way Galvanic Cell Mark as Favorite (25 Favorites)

  In this lab, students will build a simple galvanic cell to measure cell potential and will compare their data to theoretical calculations. Students will become more familiar with cells during this opportunity to investigate and compare numerous electrochemistry reactions.

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

  Demonstration: First Day Review Mark as Favorite (20 Favorites)

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

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  Polarity, Mixtures, Intermolecular Forces, Intermolecular Forces, Physical Properties, Observations, Mixtures | Middle School, Elementary School, High School

  Lab: Salad Dressing Science: Emulsions Mark as Favorite (27 Favorites)

  In this lab, students mix polar and nonpolar substances and then add various emulsifiers to encourage the mixing of the two substances. They use ingredients in salad dressing to relate science to real life scenarios.

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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 (36 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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  Intermolecular Forces, Solute & Solvent, Scientific Method | High School

  Lab: Exploring Intermolecular Forces Mark as Favorite (24 Favorites)

  In this lab, students will investigate the idea that “like dissolves like” by discovering which liquids are best suited for dissolving various substances. This can serve as a great inquiry lab prior to teaching intermolecular forces.

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  Precipitate, Chemistry Basics, Reactions & Stoichiometry, Solubility Rules, Balancing Equations, Chemical Change, Chemical Change | High School, Middle School

  Lab: Predicting Precipitates Mark as Favorite (27 Favorites)

  In this lab, students use solubility rules to predict which chemical reactions will produce precipitates.

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  Intermolecular Forces, Solubility, Intermolecular Forces, Intramolecular Forces, Polarity, Lewis Structures, Molecular Structure, Solute & Solvent, Mixtures, Melting Point, Freezing Point, Boiling Point, Physical Properties, Graphing, Mixtures | High School

  Lab: Physical Properties (High School) Mark as Favorite (27 Favorites)

  In this lesson, students investigate how intermolecular forces effect physical properties by investigating substances’ melting points as well as solubility.

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  Exothermic & Endothermic, Physical Change, Heat, Temperature, Observations, Intermolecular Forces, Solute & Solvent, Saturated/Unsaturated/Supersaturated | High School, Middle School

  Lesson Plan: Particle Modeling of Hand Warmers Mark as Favorite (22 Favorites)

  In this lesson, students will create a particulate model of matter that explains energy changes and transfer during a physical process, such as the crystallization of a solid from a supersaturated solution.

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  Solute & Solvent, Physical Change, Solubility | Middle School, High School

  Lab: Chemistree Mark as Favorite (17 Favorites)

  In this lab, students will prepare a solution to observe a physical change.

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  Colligative Properties, Boiling Point, Molality, Concentration, Boiling Point Elevation, Graphing, Accuracy, Physical Properties, Error Analysis | High School

  Lab: Changing Water's Boiling Point Mark as Favorite (21 Favorites)

  In this lab, students will explore colligative properties in a quantitative approach. They will measure the effect of increasing the molality of a salt solution on the solution’s boiling point, and they will graph their data and use the slope of the line of best fit to calculate the boiling point elevation constant of water. There are three versions of the lab, some of which provide more structure and guidance and others of which are more student-driven.

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  Titrations, Concentration, Acid Base Reactions, Indicators, Molarity, Interdisciplinary | High School

  Lab: Calculating Acid in Lemon-Lime Soda Mark as Favorite (46 Favorites)

  In this lab, students will investigate the molarity of citric acid in a clear, lemon-lime flavored soft drink through titrations with 0.10M NaOH and an indicator.

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  Mixtures, Physical Properties, Molecular Structure, Mixtures | Elementary School, Middle School, High School

  Demonstration: Analyzing Mixtures Mark as Favorite (34 Favorites)

  In this demonstration, the teacher will create a sequence of mixtures in a single test tube. Water, oil, food coloring and soap will be used in this demonstration to introduce the concepts of heterogeneous and homogeneous solutions as well as the idea of miscibility. Students will also have the opportunity to analyze the properties, such as surface tension of each component used.

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  Percent Composition, Identifying an Unknown, Net Ionic Equation, Stoichiometry, Error Analysis, Molar Mass | High School

  Lab: Analysis of Carbonate Compounds Mark as Favorite (54 Favorites)

  In this lab, students calculate the molar masses of three unknown carbonate compounds by measuring the amount of product (CO2) produced by a reaction with hydrochloric acid.

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  Solubility, Acid Base Reactions, Titrations, Indicators, Concentration, pH | High School

  Lab: Alka-Seltzer & Gas Solubility Mark as Favorite (14 Favorites)

  In this lab, students will use a reaction to investigate temperature and the solubility of carbon dioxide and will use a neutralization reaction and an indicator to verify the amount of carbon dioxide produced at each temperature.

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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.