Classroom Resources: Solutions
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101 – 125 of 170 Classroom Resources
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Scientific Method, Observations, Inferences, Intermolecular Forces, Mixtures | High School
Lab: Magic Milk Mark as Favorite (48 Favorites)
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.
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Buffers, Solubility, Molecular Structure | High School
Lab: Aspirin Tablets: Are they all the Same? Mark as Favorite (55 Favorites)
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.
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Solubility, Solute & Solvent | High School
Demonstration: Root Beer Chemistry Mark as Favorite (12 Favorites)
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.
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Ionic Bonding, Net Ionic Equation | High School
Lab: The pH of Salts Mark as Favorite (17 Favorites)
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.
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Concentration, Mixtures, Interdisciplinary, Scientific Method, Measurements | Middle School, High School
Lab: Effect of Salt Concentration on Plants Mark as Favorite (10 Favorites)
In this lab, students will observe how salt concentration can affect the structure of a potato tuber.
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Freezing Point, Phase Changes, Freezing Point Depression | Middle School, High School
Lab: Freezing Ice Cream Mark as Favorite (43 Favorites)
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.
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Beer's Law, Molarity, Concentration | High School
Lab: Beer's Law Discovered Mark as Favorite (32 Favorites)
In this laboratory investigation, students will explore the concepts of light absorption, transmittance, and the relationship between absorbance, path length, and concentration of solution.
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Density, Observations, Inferences, Mixtures, Mixtures | Middle School, High School
Demonstration: Density Tubes Mark as Favorite (3 Favorites)
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.
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Balancing Equations, Conservation of Mass, Conservation of Matter, Conservation of Matter, Chemical Change, Chemical Change, Conservation of Mass, Polyatomic Ions, Precipitate | Middle School, High School
Activity: Simulation Activity: Balancing Chemical Equations Mark as Favorite (98 Favorites)
In this activity, students will learn how to count atoms and how to balance chemical equations using a simulation and games from PhET Interactive Simulations.
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Solubility, Solute & Solvent, Mixtures, Intermolecular Forces, Intermolecular Forces, Polarity, Molecular Geometry | Elementary School, Middle School, High School
Animation: Solubility Animation Mark as Favorite (83 Favorites)
This animation explores how ionic and molecular compounds dissolve (or don’t) in water. Students will see that if an ionic compound such as salt dissolves, the ions dissociate, whereas the molecules in a molecular compound such as sugar remain intact but are separated from one another by water molecules. They will also see that some ionic compounds such as chalk do not dissolve, and the cations and anions remain stuck together. **This video has no audio**
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Balancing Equations, Precipitate, Solubility Rules | High School
Animation: Net Ionic Equations Animation Mark as Favorite (67 Favorites)
This animation explores what happens in a precipitate reaction on the particulate level. Students will see why writing a net ionic equation accurately represents what happens in these scenarios. 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**
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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 (28 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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Activity Series, Chemical Change, Oxidation, Reduction, Net Ionic Equation, Redox Reaction, Observations | High School
Lab: Fine Art of Redox Mark as Favorite (24 Favorites)
In this lab, students will practice writing and balancing redox reactions and use the activity series to verify the outcome of a chemical reaction.
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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 (18 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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Strong vs Weak, Titrations, Acid Base Reactions, Equivalence Point, Indicators, pH, Concentration, Molarity, Measurements | High School
Lab: Acid Base Reactions Mark as Favorite (7 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.
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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 (14 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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Titrations, Acid Base Reactions, Indicators, Chemical Change, Stoichiometry, Balancing Equations, Concentration, Molarity, Error Analysis, Dimensional Analysis, Measurements | High School
Lab: Vinegar Quality Control Mark as Favorite (44 Favorites)
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.
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Titrations, Concentration, Indicators, Acid Base Reactions, Equivalence Point, Molarity | High School
Lab: Lethal Dose Mark as Favorite (37 Favorites)
In this lab, students will perform several titrations to calculate the concentration of potentially “lethal” medicycloprophic solutions.
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Titrations, Concentration, Acid Base Reactions, Indicators, Molarity, Interdisciplinary | High School
Lab: Calculating Acid in Lemon-Lime Soda Mark as Favorite (54 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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Titrations, Equivalence Point, Indicators, Acid Base Reactions, Chemical Change, Salts, Molarity, Reaction Rate, Order of Reaction , Error Analysis | High School
Lab: Titration Lab with Kinetics Mark as Favorite (15 Favorites)
In this lab, students calculate the molarity of an unknown using a titration and also by solving for a dilution.
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Calorimetry, Exothermic & Endothermic, Temperature, Stoichiometry, Limiting Reactant, Chemical Change, Molarity, Enthalpy, Heat, Concentration, Experimental Design, Scientific Method | High School
Lab: Less Than Zero Mark as Favorite (36 Favorites)
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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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 (6 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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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 (23 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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Percent Composition, Identifying an Unknown, Net Ionic Equation, Stoichiometry, Error Analysis, Molar Mass | High School
Lab: Analysis of Carbonate Compounds Mark as Favorite (57 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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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.