26 – 50 of 166 Classroom Resources

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  Lab Safety, Physical Properties, Chemical Properties, Interdisciplinary, Heat, Temperature, Polymers, Molecular Structure | High School

  Video: Ingenious Video 3: This Sandwich Will Save Your Life in an Arc Flash Mark as Favorite (3 Favorites)

  It’s never fun when your clothes catch on fire. And while “stop, drop, and roll” may be a good idea sometimes, in more extreme cases, you need a better plan. Every day, industrial workers, firefighters, and soldiers risk fiery situations that might seem hard to imagine. In an arc flash event, for one, temperatures can jump to metal-melting levels in milliseconds. How can anyone possibly survive that? Well, take a tip from a club sandwich, because it’s all about the layers. The composite fabrics that protect life and limb in these situations rely on some incredible, multilayered chemistry, including the ability to quickly form a protective carbonaceous crust around the wearer.

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  Molecular Structure, Chemical Bond, Electromagnetic Spectrum, Molecular Structure | High School

  Activity: Ingenious: What Birds Know About Color that You Don't Video Questions Mark as Favorite (2 Favorites)

  In this activity, students will answer questions while watching the video, What Birds Know about Color that You Don’t, from the Ingenious series produced by the American Chemical Society. Each episode investigates a different topic related to how leading-edge chemistry is taking on the world’s most urgent issues to advance everyone’s quality of life and secure our shared future. This episode investigates structural color, its complexities as well as how it differs from pigments and dyes.

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  Electromagnetic Spectrum, Molecular Structure, Chemical Bond, Molecular Structure | High School

  Video: Ingenious Video 2: What Birds Know About Color that You Don't Mark as Favorite (7 Favorites)

  We’ve been using pigments and dyes for thousands of years, but they’re not the whole story when it comes to making color. “Structural” color occurs when tiny nanostructures interact with light waves, amplifying certain colors and canceling others. From brilliant bird feathers to butterfly wings, mole hairs to octopus skin, structural color is everywhere in the natural world. Researchers have tried for years to harness this incredible natural phenomenon in a useful way. Because these colors are so small and complex, and therefore hard to copy, their efforts have met with little success. But novel research using a computer model based in repeated random sampling — a so-called “Monte Carlo” model — is showing promise. Using this approach, scientists have been able to mimic the gorgeous blue of the mountain bluebird in a thin film of reflective beads, leapfrogging millennia of evolution.

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  Heat, Specific Heat, Phase Changes | Elementary School, Middle School

  Lab: The Insulation Investigation Mark as Favorite (3 Favorites)

  In this lab, students will think critically about the properties, structure and function of materials as they design and build a device used to insulate an ice cube to prevent it from melting.

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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 (6 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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  Review, Culminating Project, Mixtures, Separating Mixtures, Beer's Law, Concentration, Redox Reaction, Half Reactions, pH, Titrations, Buffers, Indicators, Ionic Bonding, Covalent Bonding, Alloys, Percent Composition, Le Châtelier's Principle, Enthalpy, Calorimetry, Conductivity | High School

  Lesson Plan: AP Chemistry Experimental Evidence Review Mark as Favorite (36 Favorites)

  In this lesson, students will evaluate data from 16 simulated lab experiments that were designed to mirror the Recommended Labs from the College Board. Corresponding lab experiments and demonstration options have also been included for teacher reference.

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  Equilibrium Constants, Le Châtelier's Principle, Gibb's Free Energy , Enthalpy, Entropy, Solubility | High School

  Lesson Plan: Relationship Between Free Energy and the Equilibrium Constant Mark as Favorite (15 Favorites)

  In this lesson, students will explore the relationships between solubility and Keq (specifically Ksp), as well as Keq and ΔG°. First, a guided inquiry activity will introduce the relationship between standard free energy and equilibrium constant with the equation ΔG° = -RTlnKeq. Then data collection regarding solubility of potassium nitrate at various temperatures will lead to the calculation of Ksp and ΔGo for the dissolution reaction at those temperatures. Students will manipulate the equations ΔG° = -RTlnKeq and ΔG° = ΔH° - TΔS° to derive a linear relationship between 1/T and lnKeq, which will then be graphed to determine values for ΔH° and ΔS°.

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  Heat, Specific Heat, Phase Changes, Intermolecular Forces | High School

  Activity: "It's a Phase" Puzzles Mark as Favorite (1 Favorite)

  In this activity, students will complete either a crossword puzzle or a word search puzzle for common vocabulary terms related to the topics of phase changes and heat transfer. This activity provides an opportunity for students to increase their familiarity with the terms that they will be expected to use when learning about thermochemistry.

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  Hess's Law, Calorimetry, Heat, Enthalpy, Error Analysis | High School

  Lab: Utilizing Hess's Law Mark as Favorite (37 Favorites)

  In this lab, students will use a coffee cup calorimeter to collect data that will allow them to calculate ∆H for two reactions. The first reaction, between sodium bicarbonate and hydrochloric acid is endothermic. The second, between sodium carbonate and hydrochloric pressure, is exothermic. They will then use their experimental values and Hess’s Law to determine ∆H for the decomposition of sodium bicarbonate, compare their calculated value to the theoretical value, and calculate the percent error. This resource includes a prelab presentation and sample calculations.

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  Concentration, Graphing, Electromagnetic Spectrum | High School

  Lesson Plan: Determining the Time of Death Mark as Favorite (39 Favorites)

  In this lesson, students will perform a flame test on a sample of vitreous humor (liquid found in the eyeball) in a forensic investigation. They will determine which element from the sample is used to determine the time of death. Then they will engineer a simple spectrophotometer to quantify that element. Evaluating a fake sample of vitreous humor in their spectrophotometer will help them determine the time of death for a hypothetical cadaver.

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  Atomic Spectra, Electrons, Electromagnetic Spectrum | High School

  Lesson Plan: Atomic Spectra for At-Home Learning Mark as Favorite (13 Favorites)

  In this lesson, students first observe a flame test demonstration conducted by their teacher, and hypothesize about the identity of an unknown sample. Then they make connections in their understanding as they are tasked with building a prism, researching about wavelengths, and creating a model of electron energy levels.

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  Exothermic & Endothermic, Temperature, Heat of Combustion, Chemical Change | Middle School

  Lesson Plan: Chemical Volcanoes - A Tale of Two Reactions Mark as Favorite (0 Favorites)

  In this lesson, students will use volcanoes as a vehicle to learn about the differences between endothermic and exothermic reactions by completing a hands-on activities and observing a teacher-led demonstration.

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  Atomic Mass, Subatomic Particles, Law of Conservation of Energy, Conservation of Mass | High School

  Activity: Building a Nuclide Mark as Favorite (6 Favorites)

  In this activity, students will construct a model of a nuclide and use this model to investigate why the mass of the nuclide is less than the summative mass of the individual nucleons (protons and neutrons). Additionally, the constructed nuclide will be used to help students conceptualize and differentiate between key lesson terminology (mass defect, strong nuclear force, and nuclear binding energy).

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  Specific Heat, Heat, Temperature | High School

  Simulation: Understanding Specific Heat Capacity Mark as Favorite (71 Favorites)

  In this simulation, students will play the role of engineer. They will calculate the specific heat capacity of various materials to determine which ones meet stated criteria and then perform a cost analysis to determine which material to use.

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  Specific Heat, Heat, Temperature, Experimental Design | Middle School, High School

  Activity: Simulation Activity: Understanding Specific Heat Mark as Favorite (27 Favorites)

  In this simulation, students will play the role of engineer in deciding which materials are the best candidates for a building project. They will calculate the specific heat capacity of various building materials to determine which ones meet the criteria for building an energy efficient home. Students will also do a cost analysis to determine which material to use in their building project. On the student activity sheet, they will answer additional conceptual and numerical questions related to specific heat capacity.

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  Molecular Motion, Temperature, Observations, Inferences | Elementary School

  Demonstration: How Does Temperature Affect Water Molecules? Mark as Favorite (2 Favorites)

  In this demonstration, students will observe models to better understand that temperature affects molecular movements.

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  Chemical Change, Reaction Rate, Chemical Change, Exothermic & Endothermic, Heat, Temperature | High School

  Lab: A Comparison of Two Chemical Reactions Mark as Favorite (41 Favorites)

  In this lab, students will perform two chemical reactions, one between acetic acid and sodium bicarbonate and the other between the citric acid and the sodium bicarbonate in an Alka-Seltzer tablet when dissolved in water. Both reactions will produce gas while reacting in a closed plastic sandwich bag, causing it to inflate. Students will observe the reactions and analyze the results in order to understand indicators of chemical changes, heat flow, and factors that affect reaction rates

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  Electromagnetic Spectrum, Interdisciplinary | Elementary School, Middle School, High School

  Activity: Animation Activity: Electromagnetic Spectrum Mark as Favorite (35 Favorites)

  In this activity, students will view an animation that explores the electromagnetic spectrum, with a focus on the visible spectrum. The animation addresses the relationship between color, wavelength, frequency, and energy of light waves, as well as how an object absorbs and reflects certain wavelengths of light to contribute to the color we perceive.

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  Enthalpy, Entropy, Gibb's Free Energy | High School

  Lab: Thermodynamics Escape Room Mark as Favorite (67 Favorites)

  In this lab, students are presented with an escape room scenario that challenges them to complete three tasks in order to escape from an old, mysterious Gothic house. Students are given access to a small assortment of chemicals, and standard lab equipment. They must determine which chemicals and equipment will help them to light a tap light without touching it, free a key from a block of ice without using a conventional heat source, and free a lock that is buried in a pile of glue.

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  Electromagnetic Spectrum, Interdisciplinary | Middle School, High School, Elementary School

  Animation: The Electromagnetic Spectrum Animation Mark as Favorite (71 Favorites)

  This animation explores the electromagnetic spectrum, with a focus on the visible spectrum. It addresses the relationship between color, wavelength, frequency, and energy of light waves, as well as how an object absorbs and reflects certain wavelengths of light to contribute to the color we perceive. This animation was featured in the May 2020 issue of Chemistry Solutions. **This video has no spoken audio**

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  Heat, Temperature, Exothermic & Endothermic | Middle School, High School

  Lab: Energy Transfer Investigation Mark as Favorite (25 Favorites)

  In this lab, students will experience several examples of energy transfer. They will analyze their observations and interpret their results in an attempt to explain why each transfer took place.

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  Electromagnetic Spectrum, Identifying an Unknown | Middle School, High School

  Activity: Color Matching Paint Video Questions Mark as Favorite (4 Favorites)

  In this activity, students will watch a video and answer related questions about how technology, specifically focusing on spectrophotometry, can be used for paint matching. During the video, students will learn how the spectrophotometer interacts with the spectrum of visible light in order to match or reproduce specific paint colors.

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  Molecular Structure, Molecular Geometry, Polymers, Electronegativity, Heat, Temperature, Electricity | Middle School, High School

  Activity: Future of Paint Video Questions Mark as Favorite (3 Favorites)

  In this activity, students will watch a video and answer related questions about the fascinating and innovative scientific advancements of paint. During the video, Students will learn how the molecular components in paint are helping to evolve in the world around them.

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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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  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.