Classroom Resources: Solutions


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51 – 75 of 101 Classroom Resources

  • Mixtures, Interdisciplinary, Concentration, Measurements, Scientific Method | High School, Middle School

    Lab: Effect of Salt Concentration on Plants

    In this lab, students will observe how salt concentration can affect the structure of a potato tuber.

  • Freezing Point, Phase Changes, Freezing Point Depression | High School, Middle School

    Lab: Freezing Ice Cream

    In this lab, students will investigate changing states of matter, chemical reactions, and the properties of ice and salt while creating their own ice cream.

  • Molarity | High School

    Demonstration: What Is a 1 Molar Solution?

    In this demonstration, students will determine the molarity of several different solutions demonstrated by the teacher.

  • Observations, Chemical Change, Net Ionic Equation, Reduction, Activity Series, Redox Reaction, Oxidation | High School

    Lab: Fine Art of Redox

    In this lab, students will use the activity series to verify the outcome of a chemical reaction.

  • Solubility, Reaction Rate, Solute & Solvent, Physical Change | Elementary School

    Lab: M&M's Solution

    In this lab, students will investigate dissolving using M&M’s and will determine whether dissolving happens faster without assistance, or with the assistance of the tongue and teeth.

  • Mixtures, Solubility, Intermolecular Forces, Polarity, Solute & Solvent, Intermolecular Forces, Molecular Geometry | High School, Middle School, Elementary School

    Animation: Solubility Animation

    In an animation, students will have an opportunity to visualize on the particulate level how solubility works. Examples of ionic compounds and a polar covalent compound show how when water is attracted to charged parts, they dissolve, and when they're not attracted to charged parts they stay solid. **This video has no audio**

  • Precipitate, Balancing Equations, Solubility Rules | High School

    Animation: Net Ionic Equations Animation

    In this animation, students will witness a precipitate reaction on the particulate level to understand why a net ionic equation represents what happens in these reaction types. An example of diluting a soluble solid, mixing two aqueous reactants that yield aqueous products, and mixing two aqueous reactants that yield a precipitate are part of this animation. **This video has no audio**

  • Solubility, Precipitate, Solute & Solvent | Middle School, Elementary School, High School

    Lab: Winter Crystals

    In this lab, students will create a supersaturated solution by dissolving borax in boiling water. They will create a snowflake using pipe cleaner to suspend in the solution, which will serve as a nucleation site for crystallization as the solution cools and remains undistributed overnight. This lab gives students an opportunity to experience the exciting crystallization process and become more familiar with an engaging chemistry spectacle!

  • Molarity, Stoichiometry, Limiting Reactant, Chemical Change, Calorimetry, Temperature, Exothermic & Endothermic | High School

    Lab: Less Than Zero

    In this lab, students will investigate the endothermic reaction between baking soda and HCl. Students will consider stoichiometric ratios, molar concentrations, reaction scale, and calorimetry. The lab starts with a scripted reaction that uses given molar ratios, a glass beaker, and 2-M HCl. They will witness a temperature drop of about 5 to 8 C. Students then adjust the experiment so they can achieve a temperature drop of more than 20 C.

  • Concentration, Titrations | High School

    Lab: Lethal Dose

    In this lab, students will perform several titrations to calculate the concentration of potentially “lethal” medicycloprophic solutions.

  • Molarity | High School

    Lab: Kool-Aid

    In this lab, students calculate grams of Kool-Aid powder required to make 3 different solutions of Kool-Aid (using the molar mass of sugar) with the following concentrations: 0.2 M, 0.5 M, and 1.0 M. Determine the concentration of properly prepared Kool-Aid through a taste test.

  • Chemical Change, Intermolecular Forces, Polarity, Polymers, Molecular Structure, Intermolecular Forces, Scientific Method, Monomer | Middle School

    Lesson Plan: Watch the Baby! Superabsorbent Polymer

    In this lesson, students will learn about how polymers, specifically superabsorbent polymers, work. Through lab activities, students will investigate polymer properties.

  • Chemical Change, Net Ionic Equation, Solubility Rules | High School

    Lab: Ions in Aqueous Solution Presentation

    In this lab, students will mix ionic solutions to determine what combinations form precipitates.

  • Observations, Physical Properties, Mixtures, Interdisciplinary, History, Chemical Properties | High School, Middle School

    Lab: Top Secret

    In this lab, students will learn about the history of invisible ink and will have the opportunity to compare two types of homemade invisible ink recipes.

  • Separating Mixtures, Separating Mixtures | Elementary School

    Lab: Investigating Black Ink

    In this lab, students will discover that black ink is a mixture composed of a several different pigments through a chromatography investigation.

  • Mixtures, Solubility, Percent Composition, Concentration, Solute & Solvent | Middle School

    Lab: The Perfect Kool-Aid Concentration

    In this lab, the students will investigate how the concentration of a solution affects its properties such as color and taste.

  • Colligative Properties, Specific Heat | 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.

  • 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.

  • 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.

  • Conductivity, Classification of Reactions | 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.

  • 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.

  • Solute & Solvent, Molarity, 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.

  • Solubility, Intermolecular Forces | High School

    Lab: Solubility & Compound Type

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

  • Mixtures, Intermolecular Forces, Intermolecular Forces | 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).

  • 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.

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