PBS
Pbs Learning Media: Documenting Brown: Mendez v Westminster
This 1946 federal court ruling marked a victory for Mexican Americans and chipped away at the "separate but equal" doctrine, declaring segregated schools based on national origin unconstitutional.
PBS
Pbs Learning Media: Documenting Brown: Plessy v. Ferguson
The Supreme Court's 1896 ruling legalized the "separate but equal" doctrine that sanctioned segregation.
PBS
Pbs Learning Media: The Beginnings of the Telescope
This animated essay from the NOVA Web site examines the design of Galileo's refracting telescope and Sir Isaac Newton's reflecting telescope.
PBS
Pbs Learning Media: Radio Waves: Fm vs. Am
This brief essay from A Science Odyssey Web site describes the difference between FM and AM radio waves.
PBS
Pbs Learning Media: Lever an Obelisk
Investigate the mechanical advantage of the lever in this interactive activity from the NOVA Web site.
PBS
Pbs Learning Media: Radio Transmission
This interactive activity from A Science Odyssey tracks the journey of a sound wave from the moment a musician sings into a microphone until his voice reaches the vibrating speakers of an AM Radio.
PBS
Pbs Learning Media: Steam Machine
Explore NOVA Online's interactive steam engine and discover how this machine can convert heat to mechanical energy.
PBS
Pbs Learning Media: That's My Theory!
Become a game show contestant in this online activity from A Science Odyssey and ask a series of questions to a panel of mystery scientists, using the answers to determine which scientist is Einstein.
PBS
Pbs Learning Media: Relativity and the Cosmos
This illustrated essay from the NOVA Web site introduces the basic concepts of Einstein's General Theory of Relativity and what we know about cosmology as a result.
PBS
Pbs Learning Media: Sagan on Time Travel
Astronomer Carl Sagan discusses the possibility of time travel in this audio-enhanced interview from the NOVAWeb site.
PBS
Pbs Learning Media: Buoyancy Brainteasers: Buoyancy Question
This interactive brainteaser from the NOVA: "Voyage of Doom" Web site challenges you to figure out what causes an object to sink.
PBS
Pbs Learning Media: Tidal Curiosities
This illustrated essay from the NOVA Web site answers questions about irregularities in the tides.
PBS
Pbs Learning Media: The Dating Game: Radioactive Carbon
In this media-rich essay from the NOVA: "Mystery of the First Americans" Web site, learn about the atomic structure of radioactive carbon and how it can be used to determine the age of organic remains, such as bones and teeth.
PBS
Pbs Learning Media: Discovering Air
Our understanding about the air we breathe has changed dramatically through time. This illustrated timeline from the NOVA Web site tracks the changing thought on air and the creation of the Periodic Table of the Elements.
PBS
Pbs Learning Media: Elements of Steel
This resource from the AMERICAN EXPERIENCE Web site, which contains both an interactive activity and illustrated text, looks at the composition of different types of steel and their impact on technology.
PBS
Pbs Learning Media: String Theory: Elementary Particles
This interactive activity from the NOVA Web site looks at the fundamental forces and particles that make up all matter. A thorough description of each elementary particle is provided including their mass, charge, spin, strength, and range.
PBS
Pbs Learning Media: Everyday Radiation
How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE: "Nuclear Reaction." [1:46]
PBS
Pbs Learning Media: Anatomy of a Firework
There's more to a fireworks display than meets the eye. This interactive activity from the NOVA Web site looks at the technology behind each burst of light.
PBS
Pbs Learning Media: The Structure of Metal
In this interactive activity from the NOVA Web site, animations explain different aspects of the properties of metal.
PBS
Pbs Learning Media: Mystery Mud: Exploring Changes in States of Matter
Join a group of middle-school students on a visit to a laboratory at the Massachusetts Institute of Technology, where they experiment with "mystery mud" and learn about the relationships between magnetism, particle motion, and changes in...
PBS
Pbs Learning Media: Birth of a Supernova, Type Ia
In this interactive activity from NOVA Online, learn about a type of exploding star - a Type Ia supernova - that is so bright that astronomers can measure the distance to the galaxy in which it resides, and even learn which elements make...
PBS
Pbs Learning Media: Nuclear Blast Damage
This illustrated document from the AMERICAN EXPERIENCE Web site examines the "zones of destruction" caused by nuclear weapons.
PBS
Pbs Learning Media: Periodic Table of the Elements Essay
This essay, written for Teachers' Domain, describes the foresight and pattern recognition that Russian chemist Dmitri Mendeleyev used to develop the modern periodic table of elements.
PBS
Pbs Learning Media: Acids and Bases: Making a Film Canister Rocket
ZOOM cast members mix different amounts of baking soda and vinegar to see which combination produces the most carbon dioxide for launching a film-canister rocket. [3:23]