1 – 25 of 52 Classroom Resources

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  Freezing Point, Solubility, Solute & Solvent, Phase Changes, Freezing Point Depression, Physical Change, Physical Properties | Elementary School, Middle School

  Lesson Plan: Salting Roads in Winter Mark as Favorite (3 Favorites)

  In this lesson, students investigate how the freezing point of water changes when salt is added. Many students know that water freezes at 0°C, and many believe that all substances freeze at 0°C. The investigations in this lesson help students understand why salt is spread on roads in cold and snowy conditions.

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  Physical Properties, Covalent Bonding, Electronegativity, Polarity, Molecular Geometry, Intermolecular Forces, Solubility | Middle School, High School

  Activity: The Chemistry of Water Video Questions Mark as Favorite (48 Favorites)

  In this activity, students will watch a video and answer questions about how the molecular geometry and polarity of water give rise to many of its unusual physical properties, including its relatively high boiling point and its ability to dissolve some substances but not others.

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  Conductivity, Observations, Electricity | Middle School

  Demonstration: Getting Charged Mark as Favorite (0 Favorites)

  In this demonstration, students will make predictions and then observe how conductivity is measured in several electrolyte and nonelectrolyte solutions. A short discussion about electrolytes, ions, ionic compounds, and galvanic cells will follow.

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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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  Reaction Rate, Graphing, Temperature, Concentration | High School, Middle School

  Lab: Starch-Iodine Clock Reaction Mark as Favorite (71 Favorites)

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

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  Mixtures | Middle School, High School

  Lesson Plan: Making Sense of Milk Mark as Favorite (18 Favorites)

  In this lesson, students will compare and contrast the chemical compositions of different types of plant milk and animal milk by analyzing data and developing models.

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  Concentration, Solute & Solvent | Middle School, High School

  Lesson Plan: Diffusion and Osmosis Mark as Favorite (2 Favorites)

  In this lesson, students will build upon their understanding of solutions and concentration. They will observe the diffusion of food coloring dye in water and then perform an experiment focused on how solutions of different concentrations will affect the movement of water across a semi-permeable membrane.

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  Concentration, Titrations, Indicators, Equivalence Point, Chemical Change, Accuracy, Error Analysis, Chemical Change | Middle School, High School

  Lesson Plan: Comparison of Vitamin C in Juice Drinks Mark as Favorite (16 Favorites)

  In this lesson, students will use a color-changing indicator called indophenol and a simplified titration method to determine if vitamin C is present in a variety of store-bought juices. The indicator solution will turn from dark blue to colorless once all the indophenol has reacted with vitamin C in the juices. Students will count how many drops of juice it takes to produce this color change in a 5-mL sample of indicator solution. The greater number of drops it takes to cause the color change, the less vitamin C is present in each drop. They will use their data to compare the relative amounts of vitamin C in the juices to a solution prepared from a vitamin C tablet.

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  Concentration, Physical Properties, Chemical Properties, pH | Middle School

  Activity: Would You Drink it? Mark as Favorite (26 Favorites)

  In this activity, students are provided with data regarding the water quality at multiple locations throughout a city. Students will determine which location should be prioritized for cleaning of contaminates. Students will utilize Claim Evidence and Reasoning (CER) to develop a claim that is supported by the data provided.

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  Mixtures, Solute & Solvent, Intermolecular Forces, Intermolecular Forces, Molecular Structure, Polymers, Electromagnetic Spectrum | Middle School, High School

  Activity: What is Paint? Video Questions Mark as Favorite (10 Favorites)

  In this activity, students will watch a video and answer related questions about the composition of paint. During the video, students will learn about the differences between three common paint types, water colors, oil-based and acrylic paint as well as the chemistry of each.

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  Electromagnetic Spectrum, Molecular Structure, Mixtures | Middle School, High School

  Activity: What are Pigments? Video Questions Mark as Favorite (5 Favorites)

  In this activity, students will watch a video and answer related questions about the chemistry of pigment molecules and how they are used to give paints their specific color. During the video, students will learn about the importance of a pigment’s molecular structure, how they are physically suspended to create a paint color, as well as how they interact with light.

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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 (100 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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  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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  Freezing Point Depression, Mixtures, Phase Changes, Freezing Point, Melting Point | High School, Middle School

  Lab: How does Salt "Melt" Ice? Mark as Favorite (53 Favorites)

  In this lab, students will consider why salt is used to aide in snow clearing and to help keep icy roads safe. They will investigate how salt ‘melts’ ice and determine the best type of salt to do so. Additionally, students will explore the advantages and disadvantages of the various different types of salt.

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

  Lab: Freezing Ice Cream Mark as Favorite (44 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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  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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  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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  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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  Concentration, Solute & Solvent, Mixtures, Solubility, Percent Composition | Middle School

  Lab: The Perfect Kool-Aid Concentration Mark as Favorite (11 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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  Polarity, Mixtures, Intermolecular Forces, Intermolecular Forces, Physical Properties, Observations, Mixtures | Middle School, Elementary School, High School

  Lab: Salad Dressing Science: Emulsions Mark as Favorite (29 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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  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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  Physical Properties, Observations, Mixtures, Solute & Solvent, Mixtures | Middle School

  Lesson Plan: How Fast Does it Flow? Mark as Favorite (5 Favorites)

  In this lesson students explore the viscosity of different mixtures. They measure viscosity of different mixtures and then have the opportunity to design a mixture to attain a particular viscosity. Students will relate their lab experience to the application of viscosity in the real-world as they consider the differences in viscosity between different types of paints.

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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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  Density, Mixtures, Solubility | Middle School

  Lab: Investigating Density within Lava Lamps Mark as Favorite (9 Favorites)

  In this lab students will make a simple yet spectacular lava lamp while focusing on the density of the components.

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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**