26 – 50 of 51 Classroom Resources

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

  Lesson Plan: Clean-Up Pond Pollution Mark as Favorite (3 Favorites)

  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.

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  Solubility, Solute & Solvent | Middle School, High School

  Lab: What's the Solution? Mark as Favorite (33 Favorites)

  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.

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

  Lab: Effect of Salt Concentration on Plants Mark as Favorite (9 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 (42 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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  Reaction Rate, Graphing, Temperature, Concentration | High School, Middle School

  Lab: Starch-Iodine Clock Reaction Mark as Favorite (65 Favorites)

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

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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 (78 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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  Solubility, Solute & Solvent, Precipitate, Saturated/Unsaturated/Supersaturated | High School, Elementary School, Middle School

  Lab: Winter Crystals Mark as Favorite (47 Favorites)

  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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  Chemical Change, Strong vs Weak, Salts, Acid & Base Theories, Ions, Conductivity, Mixtures | Middle School

  Lesson Plan: Why Drink Gatorade? Mark as Favorite (1 Favorite)

  In this lesson, students will test different flavors of Gatorade and other liquids to investigate acids and bases. This will take several days unless students already know about acids and bases.

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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 Mark as Favorite (5 Favorites)

  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 Mark as Favorite (21 Favorites)

  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 Mark as Favorite (9 Favorites)

  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 Mark as Favorite (5 Favorites)

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

  Lab: A Solution to Your Mix-up Mark as Favorite (4 Favorites)

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

  Lesson Plan: Sandy Beaches—A Foray into ‘Magic’ Sand Mark as Favorite (5 Favorites)

  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 Mark as Favorite (27 Favorites)

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

  Lesson Plan: Environmental Problems Mark as Favorite (10 Favorites)

  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 Mark as Favorite (27 Favorites)

  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 Mark as Favorite (22 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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  Separating Mixtures, Density, Physical Change, Chemical Change, Mixtures, Intermolecular Forces, Intermolecular Forces | Middle School

  Lab: Clean it Up! Mark as Favorite (4 Favorites)

  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 Mark as Favorite (3 Favorites)

  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 Mark as Favorite (17 Favorites)

  In this lab, students will prepare a solution to observe a physical change.

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  Separating Mixtures, Interdisciplinary, Electromagnetic Spectrum, Mixtures, Mixtures | Middle School

  Lab: Candy and Leaf Chromatography Mark as Favorite (13 Favorites)

  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 Mark as Favorite (36 Favorites)

  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 Mark as Favorite (34 Favorites)

  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 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.