Classroom Resources: Solutions


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76 – 100 of 121 Classroom Resources

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

    Lesson Plan: The Hot and Cold of it All

    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.

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

    Lab: The Culminating Unknown

    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.

  • Covalent Bonding, Ionic Bonding, Conductivity | High School

    Lab: Strong and Weak Electrolytes

    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.

  • 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.

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

    Lab: Heat of Neutralization

    In this lab, students carry out an acid base reaction to calculate the heat of neutralization.

  • Solubility, Chemical Change, Solute & Solvent, Chemical Bond | Middle School

    Lab: A Sticky Situation

    In this lab, students will try to separate plastic spoons that have been attached together with different adhesive materials using a variety of solvents.

  • 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, Reaction Rate, Temperature, Graphing | Middle School, High School

    Lab: Starch-Iodine Clock Reaction

    In this lab, students perform an iodine clock reaction to determine how concentration and temperature effect the reaction rate.

  • Separating Mixtures, Mixtures, Solubility, Phase Changes, Physical Change | Middle School

    Lab: A Solution to Your Mix-up

    In this lab, students will perform a step by step process of mixing and separating substances based on their states and solubility in order to solve a problem.

  • 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.

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

    Lab: Solubility & Compound Type

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

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

    Lesson Plan: Fuel Line Antifreeze

    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).

  • 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.

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

    Lab: Four-Way Galvanic Cell

    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.

  • Physical Change, Intermolecular Forces, Polarity, Physical Change, Intermolecular Forces, Matter | Middle School

    Lesson Plan: Sandy Beaches—A Foray into ‘Magic’ Sand

    In this lesson, students will investigate the properties of magic sand and learn about the concept of hydrophobic and hydrophilic molecules. It also introduced students to the field of nanotechnology.

  • Physical Properties, Solubility, Freezing Point, Phase Changes, Physical Change, Solute & Solvent, Freezing Point Depression, Freezing Point | Elementary School

    Lesson Plan: Salting Roads in Winter

    In this lesson, students investigate how the freezing point of water changes when salt is added.

  • 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.

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

    Lab: Salad Dressing Science: Emulsions

    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.

  • 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).

  • Solute & Solvent, Intermolecular Forces, Scientific Method | High School

    Lab: Exploring Intermolecular Forces

    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.

  • Mixtures, Solubility, Reaction Rate, Saturated/Unsaturated/Supersaturated | High School

    Lab: Rate of Solution

    In this lab, students observe how particle size, solvent temperature, and agitation affect rate of solution.

  • Mixtures, Acid, Interdisciplinary, Acid Rain, Chemical Properties | Elementary School

    Lesson Plan: Environmental Problems

    In this lesson, students are presented with an environmental problem to solve using important concepts of chemistry, which involves a lake with deteriorating water quality.

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

    Lab: Predicting Precipitates

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

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

    Lab: Physical Properties (High School)

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

  • Solubility, Physical Change, Phase Changes, Reaction Rate, Solute & Solvent, Molecular Motion | Elementary School

    Lesson Plan: Particles in Motion

    In this lesson, students learn that particles that make up matter are in constant motion.

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