Classroom Resources: Solutions
26 – 48 of 48 Classroom Resources
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Concentration, Mixtures, Interdisciplinary, Scientific Method, Measurements | 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.
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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.
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Solubility, Solute & Solvent, Mixtures, Intermolecular Forces, Intermolecular Forces, Polarity, Molecular Geometry | Elementary School, Middle School, High School
Animation: Solubility Animation
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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Solubility, Solute & Solvent, Precipitate, Saturated/Unsaturated/Supersaturated | High School, Elementary School, Middle 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!
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Polarity, Polymers, Molecular Structure, Monomer, Intermolecular Forces, Scientific Method, Chemical Change, Intermolecular Forces | 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.
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History, Interdisciplinary, Physical Properties, Chemical Properties, Observations, Mixtures | Middle School, High 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.
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Concentration, Solute & Solvent, Mixtures, Solubility, Percent Composition | 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.
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Solute & Solvent, Chemical Change, Solubility, 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.
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Reaction Rate, Graphing, Temperature, Concentration | High School, Middle 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.
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Mixtures, Separating Mixtures, Solubility, Physical Change, Phase Changes | 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.
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Polarity, Physical Change, Intermolecular Forces, Intermolecular Forces, Physical Change, 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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Polarity, Mixtures, Intermolecular Forces, Intermolecular Forces, Physical Properties, Observations, Mixtures | Middle School, Elementary School, High 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.
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Acid, Mixtures, Acid Rain, Interdisciplinary, Chemical Properties | Elementary School, Middle 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.
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Precipitate, Chemistry Basics, Reactions & Stoichiometry, Solubility Rules, Balancing Equations, Chemical Change, Chemical Change | High School, Middle School
Lab: Predicting Precipitates
In this lab, students use solubility rules to predict which chemical reactions will produce precipitates.
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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
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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Separating Mixtures, Density, Physical Change, Chemical Change, Mixtures, Intermolecular Forces, Intermolecular Forces | Middle School
Lab: Clean it Up!
In this lab, students will consider and utilize various separation techniques to purify and reclaim used motor oil.
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Chemical Change, Acid & Base Theories, Indicators, Solubility Rules, Gas Laws, Pressure | Middle School
Lesson Plan: Chemistry of Pop Rocks
In this lesson, students will determine the pH of several liquids with litmus paper or a pH probe. Next, students will explore how pH affects the production of gas with Pop Rocks. Students will also investigate how Charles’ Law affects Pop Rocks. Finally, students will design their own experiment with Pop Rocks.
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Solute & Solvent, Physical Change, Solubility | Middle School, High School
Lab: Chemistree
In this lab, students will prepare a solution to observe a physical change.
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Separating Mixtures, Interdisciplinary, Separating Mixtures, Electromagnetic Spectrum, Mixtures, Mixtures | Middle School
Lab: Candy and Leaf Chromatography
In this lab, students will learn that mixtures are created by the combination of two or more substances. Many colors are actually mixtures of several different pigments. Mixtures can be separated, and in this lab students will perform chromatography to separate mixtures found in candy and in leaves.
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Mixtures, Physical Properties, Molecular Structure, Mixtures | Elementary School, Middle School, High School
Demonstration: Analyzing Mixtures
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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Ionic Bonding, Naming Compounds, Precipitate, Ions, Molecular Formula | Middle School
Activity: Bond with a Classmate
In this activity, students are assigned an ion and form bonds with their classmates, recording the formula and name of the compound they created.
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Density, Observations, Inferences, Mixtures, 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.
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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
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.