176 resources and 4 collections matched your query.
Library of 3383 accessible STEM media resources.
Showing resources 161 to 176 of 176
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Smart Puppy and his friends explore magnets at the atomic level. Part of the “Smart Puppy! and Friends” series.
Graphene could make it possible for electricity to move effortlessly through computer chips, thereby allowing computer systems to run faster than ever before. Savings in both heat and energy costs could have graphene replacing silicon as the basis of computer chip construction. Part of the Fast Draw Series.
Part of the "Chemistry in Action" series. Demonstrates how chemical compounds are placed into groups so that they may be studied easier. Explores acids and bases, emphasizing their nature and common everyday uses. Discusses carbon compounds, and introduces the following terminology: acid, base, pH, salt, carbon, organic, and hydrocarbon.
Introduces the concept that everything is made of matter, and examines the three states of matter. Defines and examines a range of solids, liquids, and gases. Uses graphics to show the effects of heat on atoms and molecules in solids. Summarizes each segment.
Petunia and Pinky introduce viewers to bacteria in this episode. They discuss bacterial structure, reproduction, and how not all bacteria are bad. Other topics covered include endospores, plasmids, and bacteria transformation. Part of "The Amoeba Sisters" series.
Grab the Chemistry to play and explore concepts related to friction. Note when using the VoiceOver screen reader with this simulation it is easy to activate VoiceOver's Quick Nav mode while moving the Chemistry book. For the best experience, however, we recommend keeping Quick Nav off.
(Source: PhET Interactive Simulations)
Magnets can be found in many objects used everyday. Not only are they located in man-made objects, but magnetic materials can be found in nature as well. Students will gain general information about magnetism, as well as concepts about atoms and the relationship between electricity and magnets. Part of the Real World Science series.
Part of the "A 3-D Demonstration" series. Explores basic electricity as it was perceived by Benjamin Franklin and other early theorists as well as the principles of positive and negative charge, conduction and induction, atoms and electrons, and elementary charge. Relates Coulomb's Law in detail, including the torsion balance experiment, that led to a breakthrough in scientific theory related to electricity.
Join Dr. Knowledge as he takes young viewers on a fast-paced adventure to learn about energy and electricity. Shows what tools, appliances, factories, and everything from iPods to airplanes have in common. Each needs energy to do their jobs. But, where does that energy come from? We know we can get our power from a wall outlet, but that's only the beginning. Dr. K and the Inquisitive Minds team trace the electricity from the wall through the power grid to its source.
Nano expert Lisa Friedersdorf from the National Nanotechnology Coordination Office provides information on nanomaterials that have existed throughout history. She also gives additional information on the nanoscale. Part of the “Ask a Scientist” series.
The scientific explanation of global warming rests in the understand of the element carbon. Carbon is the central element of life, and its atomic structure enables it to hold onto other elements. This characteristic provides the relationship between carbon and global warming. Segment of video from Wild Chronicles Series.
This album of eight computer-animated video segments looks at the particle approach to studying light by exploring the antithesis of the wave model. Presents black-body radiation, Planck's constant, the photoelectric effect, and the work of James Clerk Maxwell as forerunners to Einstein's concept of photon frequency. Shows examples of a slope-intercept graph and a revised double-slit experiment using light-sensitive paper segue to an illustration of the Compton effect, establishing that light consists of a stream of particles. De Broglie's contributions introduce wave-particle duality, which some might consider an inadequate solution, although it represents the best that current science can do.
The rate of a chemical reaction is affected by a number of factors, including temperature and the concentration of reactants at the beginning of the reaction. While the chemical equation may show reactants turning into products as a straightforward process, it is actually involved and precise. How exactly do reactants turn into products? Sometimes, the answer is as simple as two atoms bumping into each other and forming a bond. Most of the time, however, the process is much more complex. Controlling the rate of reactions has implications for a variety of applications, including drug design and corrosion prevention. Part of the series Chemistry: Challenges And Solutions.
As shown on the History Channel. Gold dates from the time of the supernova explosion that gave birth to the building blocks of our solar system. When it was created, the Earth included a tiny percentage of gold atoms, and over the aeons geologic processes have concentrated it into various nooks and crannies around the globe. The best of it is in the ancient Precambrian rocks in South Africa, where the deepest mines in the world extract it. In other regions of the world, gold can be gathered from younger sedimentary rocks that have been eroded off older Precambrian rocks. The American gold rush was this type of deposit. Now in Nevada, sedimentary rocks are leached on a truly vast scale to extract the gold.
Gravity rules the life cycle of stars. During the Red Giant dying stage in the life of an average size star, its outer layers are blown off in vast clouds of dust and gas called "nebulae" that contain hydrogen, oxygen, and nitrogen. Gravity crushes the remaining atoms into a remnant core called a white dwarf. The gravity of giant stars-10 to 20 times larger than average-will, at the end of their life in a supernova explosion, crush together even mutually repulsive protons and electrons, leaving a remnant rotating core of neutrons (i.e., a pulsar). Also explains how stars 20 to 100 times average size collapse into a core so dense that its gravity doesn't even allow light to escape (i.e., a black hole).
A group of leading engineers in unmanned aerial vehicles (UAV) gathers on the USS Midway to discuss careers in technology fields. Mike Atwood and Darren Moe of General Atomics describe how their company aids the military, and George Guerre of Northrop Grumman discusses how drones survey various weather conditions. Mike Veale of San Diego Zoo Safari Park explains how drones help stop the poaching of rhinos and elephants in Africa. Part of the “STEAM Leadership” series.
Showing collections 1 to 4 of 4
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
Biology related concepts
A collection containing 59 resources, curated by Benetech