101 – 125 of 657 Classroom Resources

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  Separating Mixtures, Physical Properties, Mixtures

  Video: Ingenious Video 9: The World’s Smallest Water Treatment Plant Comes in a Packet Mark as Favorite (1 Favorite)

  About 800,000,000 people worldwide – that’s almost one in ten, more than the population of the U.S. – don’t have reliable access to clean water. Using a technology first developed to reuse dirty laundry water, scientists have developed a water treatment plant the size of a teabag. Inside, a potent chemical triple-threat removes microbes, heavy metals, silt and dirt to produce clean, safe water one bucket at a time.

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  Molecular Structure , Polymers, Interdisciplinary, Chemical Properties

  Video: Ingenious Video 10: Oversexed Moths are Ruining Apples for Everyone Mark as Favorite (1 Favorite)

  Codling moths may look harmless, but their larvae wreak havoc in orchards, burrowing into fruit and eating them from the inside out. Pesticides have always been the solution to the old “worm in the apple” problem, but pesticides kill all the insects in the field, even the good ones. Instead of pesticides, farmers may soon use pheromones, those scented chemical messages animals release at mating time. Spreading synthetic, species-specific pheromones keeps male codling moths from finding females to mate with. No mating means no eggs, no larvae, and no more bad apples. Scaling up agricultural pheromones has proved difficult, but innovative approaches to pheromone production (using yeast cells) and distribution (with the help of customized weather stations) are starting to make it happen.

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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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  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 (82 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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  Interdisciplinary, Functional Groups, Molecular Structure | High School

  Video: Ingenious Video 8: Is the Answer to Overfishing… Algae? Mark as Favorite (3 Favorites)

  Omega-3s are an essential nutrient that humans have to get from fish. But many of the world’s wild fish species are in crisis because we’ve taken too many of them from the ocean. So the answer is to farm more of our fish, right? While fish-farming relieves some pressure on the ocean’s wild species, it also contributes to that pressure, since farmed fish are fed fishmeal made from wild-caught fish. That’s because fish don’t make their own Omega-3s either. Like us, they get them from their diet. Using technology that came out of the space program, scientists have developed a way to cut out the middle-fish from the food chain and harvest Omega-3s for fishmeal directly from the source: algae.

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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 (7 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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  Atomic Theory, Model of the Atom, Atoms, Subatomic Particles, Electrons, Orbitals , History, Matter | High School

  Lesson Plan: Modeling Atomic Theories with Food Mark as Favorite (34 Favorites)

  In this lesson, students will create an initial model of an atom (using various food items) drawing from the knowledge that they brought into the class. They will then use the same materials to work through an interactive note-taking lesson on how the model of the atom evolved over time. Having completed the interactive notes, the students return to their original models and adjust as needed.

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  Review | Middle School, High School

  Activity: Vocabulary Learning Made Simple Mark as Favorite (5 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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  Electron Transfer, Electrons, Electricity, Model of the Atom, Atoms, Subatomic Particles, Electrons, Observations | Middle School, High School

  Lesson Plan: Understanding Static Electricity Mark as Favorite (5 Favorites)

  In this lesson, students will complete a series of activities to explore how the imbalance of charges in materials creates static electricity and how those materials interact with others around them. They will describe the relationship between atomic structure, specifically the role of protons and electrons, and static electricity.

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  Model of the Atom, Atoms, Subatomic Particles, Electrons, Atomic Mass, Isotopes, Periodic Table, Elements | Middle School, High School

  Lesson Plan: Acting Out Atomic Structure Mark as Favorite (1 Favorite)

  In this lesson, students will model the location and behavior of protons, neutrons, and electrons that make up the structure of atoms, focusing on the first 18 elements on the periodic table. Students will model different elements first by adding protons and neutrons (colored balls) to make the nucleus (a basket). Then, the students themselves will represent the electrons that are always moving around the nucleus yet remaining within their designated energy level. This activity is easiest to complete outside or in a large open room to allow for enough room.

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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 (58 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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  Emission Spectrum, Atomic Spectra, Electrons, Atomic Theory, Emission Spectrum, Electromagnetic Spectrum, Identifying an Unknown | High School

  Lab: Emissions of Light Mark as Favorite (35 Favorites)

  In this lab, students will examine three different ways to excite electrons to produce visible light found in the electromagnetic spectrum. The students will then see that this visible light has a specific color, wavelength, and frequency. They will use their knowledge of the speed of light and plank's equation to examine the energy involved in the emission of light. Finally, the students will then apply their knowledge of the emission spectrum to how the composition of stars is determined.

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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 (29 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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  Review, Physical Properties, Elements | High School

  Activity: Family Reunion Puzzle Mark as Favorite (1 Favorite)

  In this activity, students will be challenged to solve a collection of anagrams—but with a twist! Given 27 ordinary words, students must remove one letter and then rearrange the remaining letters to form a chemical term. Additionally, the anagrams are grouped into 3 families, with all of the chemical terms in each family sharing a common property or theme.

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

  Lab: Pigment pH Puzzles Mark as Favorite (19 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, 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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  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 (14 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).

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  Identifying an Unknown, Experimental Design, Chemical Properties, Physical Properties, Observations, Polyatomic Ions, Chemical Change, Ionic Bonding, Covalent Bonding, Solubility | High School

  Lab: Determining the Composition of Bridge Straw Stalactites Mark as Favorite (8 Favorites)

  In this lab, students will investigate “straws” that hang from a local bridge, and then determine various tests that can help to determine their chemical composition. Evaluating both the test results, as well as given information students will then make a claim about the composition, while providing evidence and supporting it with reasoning.

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  Reaction Rate, Catalysts, Experimental Design, Chemical Change, Reaction Rate, Chemical Change | Middle School

  Lesson Plan: Investigating Fast and Slow Reaction Rates Mark as Favorite (0 Favorites)

  In this lesson, students will review the characteristics of chemical changes and then use a catalyst and an inhibitor to explore the reaction rate of the oxidation of iron.

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  Separating Mixtures, Physical Properties, Mixtures | Middle School, High School

  Lab: Mixture Separation Challenge Mark as Favorite (24 Favorites)

  In this lab, students investigate the composition of a given mixture. Using their content knowledge and a variety of provided materials, students are tasked with separating the mixture into its individual components.

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  Introduction, Lab Safety, Chemical Properties, Physical Properties, Chemical Change, Physical Change, History, Separating Mixtures, Elements, Mixtures, Density, Measurements, SI Units, Significant Figures, Dimensional Analysis, Scientific Notation, Accuracy, Molecular Motion, Phase Changes | High School

  Lesson Plan: The Chemistry Basics and Measurement Quick Start Unit Plan Mark as Favorite (48 Favorites)

  This Quick Start Unit Plan includes all the materials that a teacher will need for the first 10 class meetings of the school year. Each day is outlined with teacher notes, and includes slide presentations as well as directions for demonstrations, activities and labs to use. The fundamental topics covered in the 10 days of lessons are: laboratory safety, laboratory equipment, experimental design, classification of matter, chemical properties, physical properties, chemical change, physical change, phase changes, separation techniques, dimensional analysis, unit conversions, factor label method, accuracy, precision, significant figures, and percent error calculations. This Quick Start Unit plan aims to help students to build a foundation of understanding, and master important topics before moving deeper into the chemistry curriculum.

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  Physical Properties, Chemical Properties, Physical Change, Chemical Change, Observations | High School

  Lab: Determining Physical and Chemical Properties Mark as Favorite (43 Favorites)

  In this lab, students will determine the physical and chemical properties of several different substances through testing and observation. Additionally, they will further their understanding of chemical and physical changes, and their ability to recognize each type of change.