51 – 62 of 62 Classroom Resources

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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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  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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  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.

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  Atomic Theory, Electrons, Model of the Atom, Subatomic Particles, History | Elementary School, Middle School, High School

  Video: Niels Bohr Video Mark as Favorite (69 Favorites)

  This video tells the story of Niels Bohr, a great scientist who redefined how we think about atoms and the electron. Bohr’s model of the atom helped to advance understanding of subatomic particles, and holds an important place in the history and development of the atomic theory.

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  Subatomic Particles, Model of the Atom, Atomic Mass, Electrons | Middle School, High School

  Project: Element Project Mark as Favorite (79 Favorites)

  In this project, students will become familiar with and have a workable understanding of atomic structure. The students will also create and construct a model of an atom.

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

  Project: The Scientists Behind the Atom Mark as Favorite (101 Favorites)

  In this project, students will create a digital (or paper) book about the scientists who contributed to our understanding of the atom.

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  Culminating Project, Review, Physical Properties, Chemical Properties, Periodic Table, History, Interdisciplinary, Electron Configuration, Subatomic Particles, Isotopes, Atomic Mass | High School, Middle School

  Project: 21st Century Elements Mark as Favorite (40 Favorites)

  In this project, students will learn the importance of the elements in our lives. The students will research one chosen element and create a website, a digital comic strip, or a video to explain the important properties of the element as well as why the element is so important to our lives.

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  Periodic Table, Elements, Introduction, History, Atoms, Electrons, Subatomic Particles | Middle School, Elementary School, High School

  Activity: Writing Your Name using Chemical Element Symbols Mark as Favorite (26 Favorites)

  In this activity, students will use their creativity to spell their name (first or middle name and their last name) using chemical symbols of elements on the periodic table. For example, you can spell Yvonne using the symbols for yttrium (Y), vanadium (V), oxygen (O), nitrogen (N), and neon (Ne).

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  Isotopes, Atomic Mass, Subatomic Particles, Experimental Design | High School

  Lab: Isotopes Make Cents Mark as Favorite (39 Favorites)

  In this lab, students use a sample of pennies to mimic how average atomic mass is calculated.

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  Model of the Atom, Periodic Table, Subatomic Particles, Electrons, Valence Electrons, Ions | High School, Middle School

  Lab: Sweet Model of the Atom Mark as Favorite (63 Favorites)

  In this lesson, students will use different candies to represent electrons, protons, and neutrons to gain a better understanding of atoms, ions, and isotopes.