26 – 30 of 30 Classroom Resources

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  Half Lives, Radioactive Isotopes, Radiation | High School

  Activity: Simulation Activity: Half-Life Investigation Mark as Favorite (32 Favorites)

  In this simulation, students will have the opportunity to investigate the decay of two samples of unstable atoms. Students will interact with the simulation in order to decay the unstable samples resulting in a visual and graphical interpretation of half-life.

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  Radioactive Isotopes, Radiation, Half Lives, History | Elementary School, Middle School, High School

  Video: Marie Curie Video Mark as Favorite (27 Favorites)

  This video tells the story about Marie Curie, including her Nobel Prizes, radiation experiments, and discovery of new elements. Irene Curie is also mentioned.

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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 (68 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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  Periodic Table, History, Radioactive Isotopes | Elementary School, Middle School, High School

  Video: Astatine Video Mark as Favorite (11 Favorites)

  In this video, Sam Kean tells stories about astatine, the rarest element in the universe.

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  Periodic Table, History, Radioactive Isotopes, Alpha/Beta/Gamma Decay | Elementary School, Middle School, High School

  Video: Helium Video Mark as Favorite (11 Favorites)

  In this video, Sam Kean tells stories about helium.