401 – 425 of 657 Classroom Resources

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  Temperature, History, Accuracy, Physical Properties | Elementary School, Middle School, High School

  Video: The Temperature Guys Video Mark as Favorite (79 Favorites)

  This video tells the story of how temperature as we currently know it evolved. The first thermometers invented in the early 1600s are very different than ones we use today!

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  Periodic Table, History, Physical Properties | Elementary School, Middle School, High School

  Video: Silicon Video Mark as Favorite (8 Favorites)

  In this video, Sam Kean tells stories about silicon.

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  Gas Laws, Pressure, Volume, History | Elementary School, Middle School, High School

  Video: Robert Boyle Video Mark as Favorite (37 Favorites)

  This video tells the story of Robert Boyle, a great chemist and discoverer of Boyle's Law, which describes the relationship between pressure and volume of a gas.

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  Atomic Radius, Ionic Radius, Electrons, Model of the Atom, Subatomic Particles, Periodic Table | Elementary School, Middle School, High School

  Animation: Atomic & Ionic Radii Animation Mark as Favorite (66 Favorites)

  This animation explores patterns in atomic and ionic radii. Students will look at the different sizes of atoms in the third period and the atoms in the sixth group to see trends across periods and down groups. They will also look at an atom and its corresponding cation as well as an atom and its corresponding anion. **This video has no audio**

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  Molecular Structure, Molecular Geometry, History, Periodic Table, Molecular Structure | Elementary School, Middle School, High School

  Video: Phosphorous Video Mark as Favorite (10 Favorites)

  In this video, Sam Kean tells the story of how phosphorus was at the center of the race to discover the structure of DNA.

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  Model of the Atom, Electrons, Electron Configuration, Quantum Numbers, Subatomic Particles, Periodic Table | High School

  Animation: Orbitals Animation Mark as Favorite (138 Favorites)

  This animation explores the shapes of the 1s, 2s, 2p, 3s, 3p, 4s, and 3d orbitals and how they build up and overlap as each successive orbital is added. **This video has no audio**

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  Periodic Table, History | Elementary School, Middle School, High School

  Video: Mercury Video Mark as Favorite (12 Favorites)

  In this video, Sam Kean tells stories about Mercury.

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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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  Periodic Table, History | Elementary School, Middle School, High School

  Video: Manganese Video Mark as Favorite (5 Favorites)

  In this video, Sam Kean tells stories about manganese.

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  Periodic Table, History, Physical Properties | Elementary School, Middle School, High School

  Video: Gallium Video Mark as Favorite (8 Favorites)

  In this video, Sam Kean tells stories about gallium.

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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 (69 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 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 (68 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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  Density, Matter, Physical Properties, Measurements | Elementary School, Middle School, High School

  Animation: Density Animation Mark as Favorite (43 Favorites)

  This animation explores density on the particulate level. There are opportunities to make qualitative and quantitative comparisons between substances. **This video has no audio**

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  Periodic Table, History, Identifying an Unknown | Elementary School, Middle School, High School

  Video: Cadmium Video Mark as Favorite (6 Favorites)

  In this video, Sam Kean tells stories about cadmium.

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  Periodic Table, History | Elementary School, Middle School, High School

  Video: Hydrogen Video Mark as Favorite (9 Favorites)

  In this video, Sam Kean tells stories about hydrogen.

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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.

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  Periodic Table, History, Identifying an Unknown | Elementary School, Middle School, High School

  Video: Arsenic Video Mark as Favorite (36 Favorites)

  In this video, Sam Kean tells stories about arsenic, a deadly element that was once referred to as the "Inheritance Powder".

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  Periodic Table, History, Physical Change | Elementary School, Middle School, High School

  Video: Gold Video Mark as Favorite (10 Favorites)

  In this video, Sam Kean tells stories about gold.

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  Conservation of Mass, History, Observations, Measurements, SI Units | Elementary School, Middle School, High School

  Video: Antoine Lavoisier Video Mark as Favorite (18 Favorites)

  This video tells the story of Antoine Lavoisier who many consider to be the father or modern chemistry. Lavoisier discovered oxygen and hydrogen and first proposed the Law of Conservation of Mass.

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  History, Physical Properties, Observations, Model of the Atom | Elementary School, Middle School, High School

  Video: Ancient Chemistry Video Mark as Favorite (70 Favorites)

  This video traces the history of chemistry from the discovery of fire, through the various metal ages, and finally to the great philosophers.

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  Mole Concept, Measurements, History, Ideal Gas, Gas Laws | High School

  Video: Amedeo Avogadro Video Mark as Favorite (45 Favorites)

  This video tells the story of Amedeo Avogadro, the scientist given credit for the mole concept, but who discovered other things in chemistry too.

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  Acid & Base Theories, Strong vs Weak, History | Middle School, High School

  Video: Acid & Base Guys Video Mark as Favorite (58 Favorites)

  This video tells the story of how the definition of acids and bases has evolved from Lavoisier, to Arrhenius, Bronsted-Lowry, and Lewis.

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  Combustion, Chemical Change, Chemical Change, Density, Kinetic Molecular Theory, Density | High School

  Demonstration: Liquid and Gas Burning Comparison Mark as Favorite (7 Favorites)

  In this demo, students will witness the burning of a substance in its gas and in its liquid states. They will carry out the demonstrations themselves, and compare the results of the two reactions.

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  Limiting Reactant, Stoichiometry, Dimensional Analysis, Mole Concept, Scientific Method | High School

  Lab: Limiting Reactants in Brownies Mark as Favorite (23 Favorites)

  In this lesson, students will investigate the idea of limiting reactant using a brownie recipe.