301 – 325 of 522 Classroom Resources

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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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  Metallic Bonding, Physical Properties, Physical Change | High School

  Lab: Molding Metal Mark as Favorite (17 Favorites)

  In this lab, students cast tin into molds and observe physical changes of metals while creating an ornament. They will apply their knowledge of metallic bonding to analyze and explain their observations.

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  Physical Properties, Heat, Alloys | High School

  Lab: Investigating Heat Treatments and Properties of Steel Mark as Favorite (18 Favorites)

  In this lab, students will take on the perspective of a material scientist working for a company that makes shocks and struts for car suspension by applying three different heat treatments to steel coils. Students will test how these heat treatments affect the properties of the high carbon steel.

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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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  Graphing, Interdisciplinary | High School

  Activity: Insect Investigators Mark as Favorite (10 Favorites)

  In this activity, students will learn that insects can be used as a tool in a criminal investigation to predict the time of death of a person or an animal by a Forensic Entomologist. Students will analyze and graph multiple data sets related to the life cycle of a blow fly in order to better understand how the blow fly can be used as evidence in an investigation.

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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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  Acid Rain, Chemical Change, Acid Base Reactions, pH, Chemical Change, Classification of Reactions, Observations, Interdisciplinary | High School

  Activity: Investigating Acid Rain Mark as Favorite (28 Favorites)

  In this activity, students will investigate the chemistry of acid rain through web based research. Students will also have the opportunity to observe the reaction between a common acid and a material in a week long simulation and relate their findings to the effects of acid rain.

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  Introduction, Lab Safety, Measurements | High School

  Lab: Cleaning Up the Lab Mark as Favorite (33 Favorites)

  In this lab, students will learn how to mass a solid, properly wash glassware, and clean up their lab area.

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  Stoichiometry, Balancing Equations, Predicting Products, Chemical Change, Mole Concept, Dimensional Analysis, Measurements, Chemical Change, Culminating Project | High School

  Project: Chemical Reaction Soda Bottle Boat Race Mark as Favorite (98 Favorites)

  In this project, students will design and build a soda bottle boat with the goal of having the fastest boat to get to the other end of the rain gutter racetrack. Students will have to complete stoichiometric calculations to determine an appropriate amount of “fuel” (baking soda + vinegar) to power their boat.

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  Review, Periodic Table, Physical Properties, Subatomic Particles, Electron Configuration, Covalent Bonding, Ionic Bonding, Naming Compounds, Molecular Geometry, VSEPR Theory, Lewis Structures, Chemical Change, Limiting Reactant, Stoichiometry | High School

  Activity: Chemistry Review Escape Room Mark as Favorite (143 Favorites)

  In this activity, students will work collaboratively to apply their chemistry knowledge in order to “escape the room.” They will work to solve four clues that span a plethora of topics ranging from Atomic Structure all the way up to Stoichiometry. These four clues will point them to four chemical reactions to conduct on a small-scale basis that will correspond with a four-digit combination to a lock. This engaging activity is not only fun for all students but also allows for interactive and collaborative review.

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  Molecular Structure , Polymers, Interdisciplinary, Chemical Properties | High School

  Activity: Ingenious: Oversexed Moths Are Ruining Apples for Everyone Video Questions Mark as Favorite (4 Favorites)

  In this activity, students will answer questions while watching the video Oversexed Moths are Ruining Apples for Everyone 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 how the larvae of codling moths wreak havoc in orchards—burrowing into fruit and eating them from the inside out. Scientists are developing synthetic, species-specific pheromones as an alternative to pesticides. Pheromones are scented chemical messages that animals release at mating time and can help to prevent male codling moths from finding females to mate with. No mating means no eggs, no larvae and no more bad apples!

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  Separating Mixtures, Physical Properties, Mixtures | High School

  Activity: Ingenious: The World's Smallest Water Treatment Plant Comes in a Packet Video Questions Mark as Favorite (8 Favorites)

  In this activity, students will answer questions while watching the video The World’s Smallest Water Treatment Plant Comes in a Packet 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 the global shortage in accessing clean water. Using a technology that was first developed to reuse dirty laundry water, scientists have developed a water treatment plant the size of a teabag that contains a chemical triple-threat—it removes microbes, heavy metals, silt and dirt to produce clean, safe water.

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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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  Heat, Physical Properties, Physical Change, Molecular Structure, Monomer, Polymers | High School

  Video: Ingenious Video 7: The World has a Receipt Problem Mark as Favorite (9 Favorites)

  The receipts you take home from the store – or stuff in your bag, or lose in your car -- employ a printing method that’s been around since the 1970s. Thermal printing involves heat-sensitive inks called leuco dyes that show up when they react with an acid developer embedded in the paper. Not only do these inks fade easily, but receipts that use them aren’t recyclable, and could even be dangerous to your health. Taking a cue from a failed experiment, scientists are developing a new kind of receipt paper that will use the same thermal printers without leuco dyes. Instead of acid developers, this paper is coated in reflective microspheres that collapse under heat, allowing regular ink underneath to show through.

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  Heat, Physical Properties, Physical Change, Molecular Structure, Monomer, Polymers | High School

  Activity: Ingenious: The World Has a Receipt Problem Video Questions Mark as Favorite (6 Favorites)

  In this activity, students will answer questions while watching the video The World has a Receipt Problem 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 the process of thermal printing on receipts, and the limitations related to the paper that currently prints using leuco dyes. This heat-sensitive ink appears when it reacts with an acid developer embedded in the paper. Scientists are working to develop a new kind of thermal receipt paper, that can use the same printers, however it offers many additional benefits and potential uses.

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  Model of the Atom, Atoms, Subatomic Particles, Electrons, Valence Electrons, Lewis Dot Diagrams, Electron Configuration, Physical Properties | Middle School, High School

  Project: Atomic Holiday Ornaments Mark as Favorite (41 Favorites)

  In this project, students will design an atomic holiday ornament for a chosen element, along with a certificate of authenticity to display on a “Chemis-tree”. Students will also have the opportunity to vote on the ornaments created by their classmates.

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  Electron Configuration, Electrons, Valence Electrons, Periodic Table, Orbitals | High School

  Activity: Electron Configuration and the Periodic Table Mark as Favorite (119 Favorites)

  In this activity, students will learn how the periodic table can be used to predict the electron configuration of an atom and, thus, better predict the reactivity of an atom.

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  Review | Middle School, High School

  Activity: Vocabulary Learning Made Simple Mark as Favorite (6 Favorites)

  In this activity, students write definitions for vocabulary words using only the 1000 most common English words. Then students interact with the simplified definitions in order to try to guess the vocabulary words correctly.

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  Combustion, Heat of Combustion, Stoichiometry, Balancing Equations, Dimensional Analysis, Interdisciplinary, Culminating Project | High School

  Lesson Plan: Redesigning a Car for the Environment Mark as Favorite (26 Favorites)

  Chemland’s city public transportation board has requested the class to help them determine the direction the city should move towards in reducing the carbon footprint. Students will be divided into groups and will come up with proposals of how to reduce the carbon footprint from carbon dioxide released from vehicles. The groups will represent different ways to reduce the carbon footprint via an alternative fuel source or a new technology. They will debate their findings to determine the direction that the city council should move towards to reduce the carbon footprint.

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  Identifying an Unknown, Observations, Physical Change, Physical Properties, Chemical Change, Chemical Properties, Solubility, Precipitate, Indicators | High School

  Lab: Using Qualitative Analysis to Identify Household Compounds Mark as Favorite (64 Favorites)

  In this lab, students will be introduced to common laboratory techniques, safety procedures, lab reagents, and terminology, all while identifying unknown household substances. Students will learn how to use qualitative analysis techniques as a systematic way to identify unknown materials. As part of this process, they will practice careful observation and documentation, as well as identifying relevant physical and chemical properties and changes, including solubility, color change, gas formation, and precipitation of solids.

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  Combustion, Chemical Change, Catalysts, Acid Base Reactions, Chemical Change, Balancing Equations, Classification of Reactions, Observations, Chemical Change | High School, Middle School

  Demonstration: Stop & Go Gases Mark as Favorite (7 Favorites)

  In this demonstration, students will witness the ability of carbon dioxide to extinguish a flame and oxygen to feed a flame. They will also be introduced to the concept of catalysts. This demonstration could also be used as an opportunity to practice writing and balancing equations and classifying chemical reactions.

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  Identifying an Unknown, Experimental Design, Scientific Method, Chemical Change, Net Ionic Equation, Precipitate, Solubility, Solubility Rules, Balancing Equations, Predicting Products, Chemical Change | High School

  Lab: Mislabeled Mess! Mark as Favorite (34 Favorites)

  In this lab, students will identify 3 unknown acids by using the solubility rules. They will be given a list of materials and will design their own procedures for identifying the unknowns. For each combination of reactants, they will predict whether a product forms and, if it does, write complete and net ionic equations for those reactions.

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  pH, Indicators, Chemical Properties, Physical Properties, Identifying an Unknown | High School

  Lab: Pigment pH Puzzles Mark as Favorite (21 Favorites)

  In this lab, students will use their scientific detective skills to determine the identity of pigments used in various types of pH test strips based on how they each interact with several solutions of different pH values.

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

  Activity: Ingenious: This Sandwich Will Save Your Life in an Arc Flash Video Questions Mark as Favorite (8 Favorites)

  In this activity, students will answer questions while watching the video, This Sandwich will Save your life in an Arc Flash, 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 the composite fabrics that protect lives of many people, like industrial workers, firefighters, and soldiers. When these workers encounter a fiery situation, they rely on protective clothing, designed using multiple layers of chemistry, to keep them safe.

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  Lab Safety, Chemical Properties, Physical Properties | Middle School, High School

  Activity: ACS Chemical Safety Video Questions Mark as Favorite (19 Favorites)

  In this activity, students will learn about safety, a core value of chemistry, through watching related videos produced by the American Chemical Society, Students will complete guided notes and questions during the activity. This chemical safety video series includes five videos: Safety Mindset, Safety Data Sheets, How to Dress for the Lab, and PPE, Preparing for Emergencies, and RAMP (Recognize hazards, Assess risks, Minimize risks, Prepare for emergencies).