Classroom Resources: Solutions


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51 – 75 of 125 Classroom Resources

  • Observations, Physical Properties, Mixtures, Chemical Properties, Separating Mixtures | Elementary School, Middle School

    Lesson Plan: Clean-Up Pond Pollution

    In this lesson, students will compare polluted and filtered water to observe how filtering can remove some kinds of pollutants. Students will also be asked to consider how people affect ecosystems and use the scientific method to conduct an experiment on polluted water.

  • Mixtures, Freezing Point, Phase Changes | Elementary School

    Lab: Coffee Creamer Ice Cream

    In this lab, students will investigate how dissolving salt (sodium chloride) in water changes the freezing point of the solution. While investigating this, they will make ice cream from small coffee creamer cups.

  • Mixtures, Reaction Rate, Chemical Change | Elementary School

    Lab: The Disappearing Color

    In this lab, students will create a solution to observe a chemical change between food coloring in water and bleach. They will also develop the process skills of predicting, observing, and measuring temperature.

  • Physical Properties, Interdisciplinary, Physical Change, Matter, Separating Mixtures, Mixtures | Elementary School

    Activity: Creating Finger-Paint from Rocks

    In this activity, the students will explore the physical properties of different rocks. Students will have the opportunity to physically change the rocks, and make them part of a mixture in order to create finger paint.

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

    Lab: What's the Solution?

    In this lab students will choose one factor that can affect the rate at which a solute will dissolve into solution –amount of stirring, temperature, or particle size, and will design a procedure that can be used to determine how it will affect rate of solution. Students will identify one of the factors above as the independent variable and will determine how it affects the solubility rate as supported by time required to dissolve the solute.

  • Observations, Mixtures, Inferences, Intermolecular Forces, Scientific Method | High School

    Lab: Magic Milk

    In this lab, students will investigate the addition of detergent to a mixture of whole milk and food coloring. Students will attempt to explain the cause of their observations. Also, students will have the opportunity to manipulate the experiment and determine how other variables may impact the results.

  • Solubility, Molecular Structure, Buffers | High School

    Lab: Aspirin Tablets: Are they all the Same?

    In this lab, students will design an experiment to test the time and completeness of dissolution of various types of aspirin in different pH environments.

  • Solubility, Solute & Solvent | High School

    Demonstration: Root Beer Chemistry

    In this demonstration, students will understand the factors affecting solubility of both a solid and a gas in a liquid through the process of making root beer.

  • Ionic Bonding, Net Ionic Equation | High School

    Lab: The pH of Salts

    In this lab, students will determine whether an aqueous solution is acidic, basic, or neutral. Students will write net ionic equations for the hydrolysis of a solution.

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

  • Concentration, Molarity, Beer's Law | High School

    Lab: Beer's Law Discovered

    In this laboratory investigation, students will explore the concepts of light absorption, transmittance, and the relationship between absorbance, path length, and concentration of solution.

  • Observations, Density, Mixtures, Inferences, Mixtures | Middle School, High School

    Demonstration: Density Tubes

    In this demonstration, students will have the opportunity to observe and analyze the density of a solution. Students will interpret their observations as they compare the density of the solution with plastic components.

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

  • 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.

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

    Lab: Fine Art of Redox

    In this lab, students will practice writing and balancing redox reactions and use the activity series to verify the outcome of a chemical reaction.

  • 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.

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

    Lab: Acid Base Reactions

    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.

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

    Lab: Acid-Base Mole Ratio

    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.

  • Chemical Change, Concentration, Acid Base Reactions, Molarity, Balancing Equations, Stoichiometry, Dimensional Analysis, Measurements, Titrations, Indicators, Error Analysis | High School

    Lab: Vinegar Quality Control

    In this lab, students will perform a titration of a vinegar sample to determine if it is it close to the concentration claimed on the bottle.

  • Concentration, Acid Base Reactions, Molarity, Titrations, Indicators, Equivalence Point | High School

    Lab: Lethal Dose

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

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

    Lab: Calculating Acid in Lemon-Lime Soda

    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.

  • Chemical Change, Reaction Rate, Acid Base Reactions, Molarity, Titrations, Indicators, Order of Reaction , Salts, Equivalence Point, Error Analysis | High School

    Lab: Titration Lab with Kinetics

    In this lab, students calculate the molarity of an unknown using a titration and also by solving for a dilution.

  • Concentration, Molarity, Stoichiometry, Limiting Reactant, Chemical Change, Calorimetry, Heat, Temperature, Exothermic & Endothermic, Scientific Method, Enthalpy, Experimental Design | 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.

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