76 – 100 of 118 Classroom Resources

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  Isotopes, Atomic Mass, Subatomic Particles | Middle School, High School

  Simulation: Isotopes & Calculating Average Atomic Mass Mark as Favorite (75 Favorites)

  In the May 2017 simulation, students first learn how the average atomic mass is determined through a tutorial based on the isotope abundance for Carbon. Students will then interact within a workspace where they will select the number of isotopes, the mass of each isotope as well as their abundancies in order to successfully build a mystery element. Finally they will use their choices to calculate the average atomic mass of the mystery element.

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  Molecular Formula, Ionic Bonding, Covalent Bonding, Molecular Geometry, Naming Compounds, Lewis Structures, Periodic Table, Valence Electrons, Lewis Dot Diagrams, Ions, Subatomic Particles | High School, Middle School

  Simulation: Ionic & Covalent Bonding Mark as Favorite (165 Favorites)

  In the September 2016 simulation, students investigate both ionic and covalent bonding. Students will have the opportunity to interact with many possible combinations of atoms and will be tasked with determining the type of bond and the number of atom needed to form each. Students will become familiar with the molecular formula, as well as the naming system for each type of bond and geometric shape, when applicable.

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  Electron Affinity, Atomic Radius, Ionic Radius, Ions, Atoms, Periodic Table, Model of the Atom, Subatomic Particles, Electrons, Valence Electrons | High School

  Simulation: Periodic Trends II: Electron Affinity, Atomic Radius & Ionic Radius Mark as Favorite (33 Favorites)

  The May 2016 simulation is a follow-up to the March 2016 simulation. Students will focus their investigation on the electron affinity of an atom. Through the use of this simulation students will have the opportunity to examine the formation of an anion as well as compare the atomic radius of a neutral atom to the ionic radius of its anion.

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  Atomic Radius, Ionic Radius, Ionization Energy, Valence Electrons, Periodic Table, Atoms, Electrons, Subatomic Particles, Ions, Model of the Atom | High School

  Simulation: Periodic Trends: Ionization Energy, Atomic Radius & Ionic Radius Mark as Favorite (100 Favorites)

  In this simulation for the March 2016 issue, students can investigate the periodic trends of atomic radius, ionization energy, and ionic radius. By choosing elements from the periodic table, atoms can be selected for a side by side comparison and analysis. Students can also attempt to ionize an atom by removing its valence electrons. Quantitative data is available for each periodic trend, and can be further examined in a graph.

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  Periodic Table, Elements, History, Atomic Mass, Atomic Theory, Isotopes, Subatomic Particles, Radioactive Isotopes | High School

  Lesson Plan: The Periodic Table and Transuranium Elements Mark as Favorite (30 Favorites)

  In this lesson, students will learn about the transuranium elements through reading about some of their discoveries. 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.

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  Temperature, Temperature, Heat, Photosynthesis, Isotopes | High School

  Lesson Plan: Climate Change and the Keeling Curve Mark as Favorite (20 Favorites)

  In this lesson, students will learn about climate change through reading about research behind carbon dioxide emissions, which led to the development of the Keeling Curve. Isotopic tracing as well as photosynthesis are briefly touched on. 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.

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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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  Ionic Bonding, Covalent Bonding, Lewis Structures, Model of the Atom, Valence Electrons | Middle School, High School

  Activity: Chemists in the Lab Game Mark as Favorite (55 Favorites)

  In this activity, students will play a game that is modeled after Settlers of Catan to explore how atoms of certain elements combine in fixed ratios to form molecules.

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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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  Model of the Atom, Atomic Theory, Electron Configuration, Electrons, Valence Electrons, Orbitals , Subatomic Particles, Atomic Radius, Ionization Energy | High School

  Activity: Bohr Model vs. Quantum Mechanical Model Mark as Favorite (67 Favorites)

  In this activity, students will compare two models of the atom using cognitive scaffolding to move from the more simplistic Bohr model to the more abstract and accurate quantum mechanical model. They will examine experimental data and use it to explain periodic trends that cannot be accounted for with the Bohr model.

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  Electron Configuration, Electrons, Atoms, Ions, Orbitals , Valence Electrons, Model of the Atom | High School

  Activity: Electron Configuration and Orbital Diagrams Mark as Favorite (68 Favorites)

  In this activity, students will learn how to apply the Aufbau principle, Pauli exclusion principle, and Hund’s rule to model electron configurations and orbital diagrams. They will use colored flat marbles to represent different directional spins of electrons as they fill orbitals based on energy level. They will then look for patterns in the electron configurations and orbital diagrams of various atoms and ions.

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  Ions, Atoms, Subatomic Particles, Electrons, Isotopes | Middle School, High School

  Demonstration: Electrons and Ions Explained with Balloons Mark as Favorite (27 Favorites)

  In this demonstration, helium balloons and clothespin weights are used to demonstrate how adding an electron makes a negative ion, and removing an electron makes a positive ion, a concept that is often confusing to students.

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  Electromagnetic Spectrum, Atomic Spectra, Electrons | High School

  Demonstration: Flame Test (Rainbow Demo) Mark as Favorite (110 Favorites)

  In this demonstration, students will observe the variety of colors produced when different metals or metallic salts are heated in a flame.

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  Periodic Table, Elements, Review, Atomic Radius, Ions, Ionization Energy, Atomic Mass | High School

  Activity: Reviewing the Periodic Table and Periodic Trends Mark as Favorite (68 Favorites)

  In this activity, students will use their knowledge of the periodic table and periodic trends to add fictional elements to a periodic table based on their properties. Once the elements are in the correct place they will reveal a hidden message. This review activity will help students prepare for a summative assessment such as a unit test or final exam.

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  Atomic Spectra, Activity Series, Emission Spectrum, Ions, Electromagnetic Spectrum, Emission Spectrum, Observations, Inferences | High School

  Lab: Flame Test: Going Further Mark as Favorite (61 Favorites)

  In this lab, students will investigate the colors produced when several mixtures of metallic ions are placed in a flame.

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  Metallic Bonding, Electrons, Electricity, Electrostatic Forces | High School

  Demonstration: Metallic Bonding & Magnetics Mark as Favorite (27 Favorites)

  In this demonstration students will observe how electrons flow through a metal in an example of metallic bonding. Using tubes made of different metal materials as well as one made of plastic, in combination with a rare earth magnet (neodymium magnet) the teacher will demonstrate how electrons will flow freely through a metal and create a magnetic field.

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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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  Orbitals , Electrons, Electron Configuration | High School

  Activity: Electrons and Orbitals Mark as Favorite (64 Favorites)

  In this lesson, students will differentiate between energy levels, sublevels, orbitals, and electrons. Students often confuse these terms related to electrons and this activity should help them develop a stronger understanding of how to distinguish between them.

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  Electromagnetic Spectrum, Atomic Spectra, Electrons | High School

  Lab: Mystical Fire Investigation Mark as Favorite (44 Favorites)

  In this lab, students will create several testable questions based upon their observations of a mystical fire. Students then direct their own laboratory experience as they safely investigate these testable questions through the use of multiple flame tests.

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  Radioactive Isotopes, Half Lives, Subatomic Particles, Periodic Table | High School

  Activity: Why are Some Isotopes Radioactive? Mark as Favorite (63 Favorites)

  In this activity, students use periodic trends and data to make predictions about what makes an isotope radioactive. They will then verify or refine their predictions using a PhET simulation.

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  Covalent Bonding, Lewis Structures, VSEPR Theory, Electronegativity, Polarity, Atomic Radius, Valence Electrons | High School

  Project: Molecular Modeling Mark as Favorite (111 Favorites)

  In this project, students will research a molecule selected from the teacher approved list, construct a three-dimensional model of the molecule, and present their research to the class in a 7-10 minute oral presentation.

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  Atomic Mass, Subatomic Particles | High School, Middle School, Elementary School

  Video: History of the Periodic Table Video Mark as Favorite (124 Favorites)

  In this video, Sam Kean tells the story of the development of the periodic table. He also pays tribute to each of the major scientific contributors, including Dimitri Mendeleev, who made great discoveries through their efforts to best organize the elements.

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  Atomic Mass, Atomic Theory, Model of the Atom, Subatomic Particles, Periodic Table, History | Elementary School, Middle School, High School

  Video: Dimitri Mendeleev Video Mark as Favorite (69 Favorites)

  This video tells the story of how Dimitri Mendeleev organized the periodic table, even leaving gaps to be filled in with elements that weren't yet discovered.

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  Radioactive Isotopes, History, Subatomic Particles, Model of the Atom, Atomic Theory | Middle School, High School

  Video: Ernest Rutherford Video Mark as Favorite (71 Favorites)

  Rutherford's initial research was studying alpha particles, which he hypothesized were helium nuclei. With the help of Hans Geiger, Rutherford conducted the gold foil experiment, which justifies that the nucleus of an atom is a dense collection of protons and contains the majority of an atom’s mass. It also inferred that most of the atom is empty space and electrons are not located in the nucleus. He won the Nobel Prize in chemistry in 1908 for his studies on radioactive substances.