26 – 50 of 60 Classroom Resources

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  Kinetic Molecular Theory, Pressure, Gas Laws, Volume, Temperature, SI Units, Molecular Motion | High School, Middle School

  Activity: Simulation Activity: Gas Law Variables Mark as Favorite (6 Favorites)

  In this simulation, students investigate variables of a gas. From the computer models, they can see how pressure, temperature, and volume effect gas behavior.

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  Heating Curve, Phase Changes, Intermolecular Forces, Freezing Point, Melting Point, Boiling Point, Heat of Fusion, Heat of Vaporization , Molecular Motion, Temperature, Heat, Specific Heat | High School, Middle School

  Activity: Simulation Activity: Heating Curve of Water Mark as Favorite (93 Favorites)

  In this simulation, students will investigate qualitatively and quantitatively what happens as water changes states.

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  Concentration, Precipitate, Molarity, Molality, Conductivity, Colligative Properties, Boiling Point Elevation, Freezing Point Depression, Distillation, Culminating Project, Graphing, Accuracy, Error Analysis, Interdisciplinary, Mixtures, pH, Buffers, Boiling Point, Freezing Point, Phase Changes | High School

  Lesson Plan: Investigating Sea Water Mark as Favorite (27 Favorites)

  In this lesson, students will consider their water footprint and means to obtain fresh water from seawater using a solar still. To understand the differences between fresh water and seawater, students will determine the composition of artificial seawater by using qualitative analysis to test for different ions in solution and calculate the molarity of different salts used in the recipe. Students will observe the effects of solutes in aqueous solutions by measuring conductivity and the freezing and boiling points of seawater and deionized water and determine total dissolved solids. In addition, students explore the buffering ability of seawater and the effect of carbon dioxide on its pH.

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  Phase Changes, Molecular Motion | Middle School, High School

  Simulation: States of Matter and Phase Changes Mark as Favorite (109 Favorites)

  In this simulation, students will participate in a 10 question quiz. Some questions will challenge students to analyze data to identify the correct state of matter for a specific sample, and then connect the chosen state with an animated particle diagram. In addition, students will examine the behavior of particles in an animated sample as they undergo a phase change, and must correctly identify the change that occurs.

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  Molecular Motion, Density, Physical Properties, Density, Gas Laws, Ideal Gas, Temperature, Pressure, Volume | Middle School, High School

  Simulation: Density Mark as Favorite (14 Favorites)

  The simulation for the September 2015 issue allows students to investigate the effect of changing variables on both the volume and the density of a solid, a liquid, and a gas sample. Students will analyze the different states of matter at the particle level as well as quantitatively.

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  Heating Curve, Phase Changes, Intermolecular Forces, Freezing Point, Melting Point, Boiling Point, Heat of Vaporization , Molecular Motion, Temperature, Specific Heat, Heat, Heat of Fusion | Middle School, High School

  Simulation: Heating Curve of Water Mark as Favorite (53 Favorites)

  In the May 2015 issue, students explore the heating curve for water from a qualitative and quantitative perspective. Students compare illustrations of each physical state depicted on the curve and calculate the energy required to transition from one state to another.

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  Colligative Properties, Boiling Point Elevation, Freezing Point Depression, Concentration, Solute & Solvent, Boiling Point, Freezing Point, Phase Changes, Molecular Motion, Graphing, Physical Properties, Heat, Temperature | High School

  Simulation: Colligative Properties Mark as Favorite (34 Favorites)

  In this simulation, students will investigate the effects of different solutes, and different amounts of those solutes, on the boiling point and freezing point of a solution. Students will see particle-level animations of boiling and freezing with different types and amounts of solutes, as well as graphical representations of the results of each trial.

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  Colligative Properties, Boiling Point Elevation, Freezing Point Depression, Concentration, Solute & Solvent, Boiling Point, Freezing Point, Phase Changes, Molecular Motion, Graphing, Physical Properties, Heat, Temperature | Middle School, High School

  Activity: Simulation Activity: The Effect of Solutes on Boiling and Freezing Point Mark as Favorite (43 Favorites)

  In this activity, students will use a colligative properties simulation to investigate the effects of different solutes, and different amounts of those solutes, on the boiling point and freezing point of a solution. Students will see particle-level animations of boiling and freezing with different types and amounts of solutes, as well as graphical representations of the results of each trial.

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  Heat, Boiling Point, History | High School

  Lesson Plan: Norbert Rillieux, Thermodynamics and Chemical Engineering Mark as Favorite (15 Favorites)

  In this lesson, students will learn about thermodynamics through a historical story of a budding Black chemical engineer named Norbert Rillieux. He is credited with creating the process for isolating sugar crystals from sugarcane because of his keen understanding of thermodynamics. There are a series of activities to help promote literacy in the science classroom related to the reading. This lesson could be easily used as plans for a substitute teacher, as most of the activities are self-guided. Rillieux’s story is interesting from a diversity standpoint. He was a free biracial scientist living in the South during pre-Civil War times. This story provides an opportunity to discuss diversity, equity, and inclusion in the chemistry classroom.

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  Colligative Properties, Boiling Point, Molality, Concentration, Boiling Point Elevation, Graphing, Accuracy, Physical Properties, Error Analysis | High School

  Lab: Changing Water's Boiling Point Mark as Favorite (24 Favorites)

  In this lab, students will explore colligative properties in a quantitative approach. They will measure the effect of increasing the molality of a salt solution on the solution’s boiling point, and they will graph their data and use the slope of the line of best fit to calculate the boiling point elevation constant of water. There are three versions of the lab, some of which provide more structure and guidance and others of which are more student-driven.

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  Phase Changes, Intermolecular Forces, Boiling Point | High School

  Demonstration: Boiling Water & Liquid Nitrogen Mark as Favorite (2 Favorites)

  In this demonstration, students will observe boiling water added to liquid nitrogen. This causes the liquid nitrogen to quickly evaporate and appear cloud-like as water vapor in the air condenses on the cold gaseous nitrogen.

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  Molecular Motion, Heat, Phase Changes, Melting Point, Heating Curve, Freezing Point, Temperature, Graphing | High School, Middle School

  Lesson Plan: Modeling the Melting of Ice Mark as Favorite (34 Favorites)

  In this lesson, students will create a particulate model of matter that explains energy changes and transfer during a phase change.

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  Intermolecular Forces, Polarity, Molecular Motion, Intermolecular Forces, Molecular Motion, Physical Change | High School

  Simulation: Comparing Attractive Forces Mark as Favorite (49 Favorites)

  In the November 2014 issue, students explore the different attractive foreces between pairs of molecules by dragging the "star" image. In the accompanying activity, students investigate different types of intermolecular forces (London dispersion and dipole-dipole). In the analysis that follows the investigation, they relate IMFs (including hydrogen bonding) to physical properties (boiling point and solubility).

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  Phase Changes, Molecular Motion, Intermolecular Forces, Heat of Combustion, Temperature, Exothermic & Endothermic | High School

  Lab: Investigating Condensation Mark as Favorite (8 Favorites)

  In this lab, students will explore the phase change of condensation and determine whether this process is endothermic or exothermic. Students will then investigate how water vapor condenses, what effect surrounding temperature has on the rate of condensation, and what is happening to the molecules when they condense.

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  Freezing Point Depression, Heat, Phase Changes, Molecular Motion | Middle School, High School

  Lab: Sweet, Salty and Cold as Ice Mark as Favorite (33 Favorites)

  In this lab, students conduct a micro-scale investigation to explore how various solutes affect the freezing point of water. Because of the small volume of liquid used, results are visible within minutes. Students observe what happens to the liquids as they are cooled and use their observations to infer what is going on at the particle level. They will use the results to explain the familiar phenomena of why we salt our roads and sidewalks in the winter and why freshwater lakes and ponds freeze over more easily than saltwater oceans in the winter.

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  Heat, Temperature, Specific Heat, Observations, Molecular Motion | High School, Middle School

  Activity: What Makes Something Feel Warm Mark as Favorite (58 Favorites)

  In this lesson students actively engage in thinking about energy issues in chemistry and the nature of energy (thermal) transfer. The idea that temperature is a measure of heat content will be challenged, and students will be given the opportunity to collect data that will allow them to clearly see that different materials transfer energy at different rates.

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  Intermolecular Forces, Boiling Point, Heat of Vaporization , Molar Mass, Polarity, Intermolecular Forces | High School

  Lab: Heat of Vaporization Mark as Favorite (10 Favorites)

  In this lab, students test whether a substance’s heat of vaporization is determined by its molar mass, the strength of its intermolecular forces, or both.

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  Heat of Vaporization , Boiling Point, Intermolecular Forces, Phase Changes, Heating Curve, Heat of Combustion, Temperature, Specific Heat, Observations, Chemical Change, Physical Change | Middle School, High School

  Demonstration: Cooking an Egg in Chemistry Class Mark as Favorite (7 Favorites)

  In this demonstration, students will observe the very high latent heat of vaporization for water by boiling water over a Bunsen burner in a paper cup to cook a boiled egg. The discussion can be extended to incorporate intermolecular forces to explain the unusually high boiling point of water, as well as heat of vaporization and specific heat capacity.

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  Intermolecular Forces, Physical Change, Intermolecular Forces, Polarity | High School

  Activity: Intermolecular Forces Activity Mark as Favorite (17 Favorites)

  In this activity, students will represent molecules and energy to investigate the different types of intermolecular forces.

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  Physical Change, Intermolecular Forces, Heating Curve, Phase Changes, Graphing, Heat, Exothermic & Endothermic, Temperature, Freezing Point, Melting Point | High School

  Lab: Heating & Cooling Curve Mark as Favorite (48 Favorites)

  In this lab, students will create a phase change graph by adding and removing heat to observe and record data during actual phase changes.

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  Phase Changes, Elements, Mixtures | High School, Middle School

  Activity: Visualizing States of Matter Mark as Favorite (140 Favorites)

  In this activity, students will view, sort and classify pure substances and mixtures into the 3 common states of matter found in the laboratory. Students will also discuss their classification system with their teacher and peers.

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  Ionic Bonding, Covalent Bonding, Melting Point, Molecular Structure | High School

  Lab: Ionic vs. Covalent Compounds Mark as Favorite (155 Favorites)

  In this lab, students will compare two seemingly similar substances, salt and sugar. Through melting a sample of each substance and analyze of their chemical composition, students will draw conclusions regarding ionic and covalent compounds.

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  Gas Laws, Sublimation, Ideal Gas, Volume, Temperature, Pressure, Density, Phase Changes, Interdisciplinary, Density, Physical Change, Mole Concept, Dimensional Analysis, Measurements | High School

  Demonstration: Ideal Gas Law using Carbon Dioxide Mark as Favorite (15 Favorites)

  In this demonstration, students observe dry ice sublime while the CO2 gas fills a balloon. They then calculate the moles and volume of CO2 produced.

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  Molecular Motion, Physical Properties | Middle School, High School

  Activity: Categorizing States of Matter Mark as Favorite (101 Favorites)

  In this activity students will analyze both written statements and images that describe the properties of a solid, liquid or gas. Students will determine which state of matter the description best describes and categorize it accordingly.

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  Ionic Bonding, Naming Compounds, Molecular Formula, Ions, Ionic Radius, Solubility, Melting Point, Physical Properties | High School

  Activity: My Name is Bond, Ionic Bond Mark as Favorite (74 Favorites)

  In this lesson, students will demonstrate their knowledge of ionic bond strength using a “brackets” activity. Pairs of students start the activity playing a game of “Ionic Compound War” to build eight compounds. Then then transfer the compounds to a “bracket” and use their knowledge of ionic bonding, along with a solubility chart, to predict the strongest and weakest bond between four pairs of ionic substances.