326 – 350 of 519 Classroom Resources

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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 (70 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 (12 Favorites)

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

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

  Video: Arsenic Video Mark as Favorite (37 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, 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, 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 (71 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 (47 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 (24 Favorites)

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

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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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  Limiting Reactant, Percent Yield, Stoichiometry, Balancing Equations, Measurements, Observations, Error Analysis, Separating Mixtures, Error Analysis, Dimensional Analysis, Mole Concept | High School

  Lab: Determining Limiting Reactant and Percent Yield Mark as Favorite (78 Favorites)

  In this lab, students react copper(II) chloride with aluminum and determine the limiting reactant. They will identify the limiting reactant both theoretically through calculations and experimentally through their observations of the chemical reaction. They then determine which product to isolate to determine the percent yield of the reaction.

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  Introduction, Interdisciplinary, Scientific Method | High School

  Activity: Write the Methods Section Mark as Favorite (7 Favorites)

  In this activity, students will learn how to write and think like a scientist when they complete their lab write ups.

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  Limiting Reactant, Balancing Equations, Stoichiometry, Observations, Chemical Change | High School

  Lesson Plan: Observing the Limiting Reactant Mark as Favorite (14 Favorites)

  In this lesson, students will be introduced to the concept of limiting reactants by applying various literacy strategies to a one-page informational text and through a short demonstration (or lab). The reading and demo will help students create connections between the macroscopic, particulate, and symbolic representations of chemical reactions and limiting reactants.

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  Limiting Reactant, Percent Yield, Stoichiometry, Balancing Equations, Net Ionic Equation, Concentration, Molarity, Precipitate, Solubility, Dimensional Analysis, Mole Concept, Observations, Graphing, Separating Mixtures, Identifying an Unknown | High School

  Lab: White Lab Mark as Favorite (55 Favorites)

  In this lab, students use molarity concepts to review limiting reactant concepts mathematically, conceptually, and graphically. They can then carry out a follow up investigation to identify an unknown using concepts learned in the first investigation.

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  Lab Safety | High School, Elementary School, Middle School

  Activity: What Not to do in the Chemistry Lab Mark as Favorite (95 Favorites)

  In this activity, students will examine a cartoon of a chaotic chemistry laboratory and note the specific behaviors that are dangerous and unsafe in a chemistry laboratory setting. This activity provides an opportunity for teachers to introduce laboratory safety and best laboratory practices and discuss them with their students.

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  Heat, Temperature, Specific Heat, Observations, Molecular Motion | High School, Middle School

  Activity: What Makes Something Feel Warm Mark as Favorite (57 Favorites)

  In this lesson students actively engage in thinking about energy issues in chemistry and the nature of energy (thermal) transfer. The idea that temperature is a measure of heat content will be challenged, and students will be given the opportunity to collect data that will allow them to clearly see that different materials transfer energy at different rates.

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  Temperature, Molecular Motion, Observations, Inferences | High School, Middle School

  Demonstration: What is Temperature? Mark as Favorite (62 Favorites)

  In this demonstration, students will observe food dye mixing with water at different temperatures.

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  Introduction, History, Periodic Table, Elements, Observations, Physical Properties, Chemical Properties | High School

  Lesson Plan: What is Chemistry? Mark as Favorite (24 Favorites)

  In this lesson, students watch a video narrated by Bill Nye, and then complete a SOMA cube to enhance their perspective in the process of discovery.

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  Combustion, Limiting Reactant, Catalysts, Gas Laws, Stoichiometry, Activation Energy, Enthalpy, Energy Diagrams, Experimental Design | High School

  Lab: Launching Rockets Mark as Favorite (76 Favorites)

  In this lab, students create a stoichiometric mixture of hydrogen and oxygen gases to launch a soda bottle rocket.