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Library of 3383 accessible STEM media resources.
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Invisible ultra-violet light energy is finding its way into an increasing variety of high-tech applications, such as disinfecting water of hazardous micro-organisms and in the development of paint that dries in seconds. The highly competitive field of computer chip lithography also has chemists and physicists working with ultra-violet light technology. New light technologies are being used to manufacture semiconductors, lenses, and many other technological components.
(Source: DCMP)
In this chapter, the scientists will try to find the best corn to make the biggest popcorn. They will also have a lot of fun with optical illusions. And finally they will show how eyeglasses gather light by using lasers. Part of the House of Science Series.
The immune system has a tough job keeping human bodies free of harmful microbes. Humans come in contact with germs and bacteria every day, and the immune system is challenged to protect the body. Explores how the human body goes to battle against germs in order to keep people healthy and how sometimes the immune system requires assistance.
Figure 2.2 (OpenStax, Biology 2e) caption: Elements, such as helium, depicted here, are made up of atoms. Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.
(Source: OpenStax)
The concept of propulsive thrust to move objects over large distances is ancient. Yet, the technology to move an automobile forward or a rocket into space was invented less than two centuries ago. The invention of the solid fuel propulsion system combined with Newton's Third Law is the simplistic basis for modern rocketry. Students will review the history of propulsion and explore its use as a viable energy source of the future.
Corn is king. It can be found in other foods, in the ink for pens, and in gas for cars. Indeed, it's one of the most versatile substances on the planet. Today, it is a very different product than the one that once grew wild across North America. In this episode, Dr. Joe Schwarcz traces the evolution of corn. Part of the "Science to Go With Dr. Joe Schwarcz" series.
Part of the "Visualizing Cell Processes" series. Includes the following modules on photosynthesis: "Chloroplast Structure," "Light Trapping by Chlorophyll," "Light–Dependent Reactions of Photosynthesis," and "The Light–Independent Reactions of Photosynthesis." Includes the following modules on cellular respiration: "Glycolysis and Fermentation," "Mitochondrion Structure," "Aerobic Respiration," "Krebs Cycle," "Electron Transport Chain," and "ATP synthesis."
This video explores the wide range of defense mechanisms the body calls upon to fight foreign invaders in an effort to maintain health. Immune responses, diseases, and care of the immune system are some of the topics addressed. Concepts and terminology include: pathogen, defenses, lymph, phagocytes, macrophages, lymphocytes, humoral immunity, antibody, acquired immunity, vaccines, allergies, autoimmune disorders, AIDS, immune disorders, and care of the immune system.
The cathode ray tube, fiber optic, color TV, remote controls, and satellites are only a few of the technological advances that have transformed television over the years. During the last decade, the audiovisual industry has not stopped innovating and creating numerous other tools of production and post-production for TV, movies, commercials, and other digital media. Host Nerdo Cavernas takes viewers on a journey to get to know all these important advances.
There’s no shortage of ideas about how to use nanotechnology, but one of the major hurdles is how to manufacture some of the new products on a large scale. With support from the National Science Foundation (NSF), UMass Amherst chemical engineer Jim Watkins and his team are working to make nanotechnology more practical for industrial scale manufacturing. Part of the National Science Foundation Series “Science Nation.”
Anything that takes up space or has mass is matter. Under certain conditions matter can be a solid, liquid, gas or plasma. Different states of matter can be combined in suspensions, and solutions and mixtures can be taken apart. Exploring the physical and chemical properties of matter provides insight into nature and a glimpse at how scientists and engineers use this knowledge to shape our world.
Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.
Presents the principles of atmospheric dynamics. The Earth's atmosphere is a balance of gases and sunlight that allows for the possibility of life. It has a composition, structure, and life sustaining biological, geological, and chemical cycles in its lower reaches. Also, discusses how these atmospheric elements are being impacted by the unprecedented burning of fossil fuels.
Photosynthesis converts light energy from the sun into chemical energy stored in organic compounds, which are used to build the cells of producers and ultimately fuel ecosystems. After providing an overview of photosynthesis, a series of animations describe the inside of the cells of a leaf to explain how the reactions of photosynthesis happen.
Bullet ants have the most intense sting of any insect, and in this episode, host Emily Graslie learns what makes their sting so painful. She visits with Dr. Corrie Moreau and witnesses how she extracts their venom to learn more about its chemical makeup. Part of "The Brain Scoop" series. Please note this title shows the dissection of insects.
From Styrofoam cups to artificial organs, plastics are perhaps the most ubiquitous and versatile material ever invented. No invention in the past 100 years has had more influence and presence than synthetics. But such progress has had a cost. Investigates what we really know about the material of a thousand uses and why there's so much of it. On the way we discover a toxic legacy, and the men and women dedicated to cleaning it up. NOTE: Contains a brief nude scene.
In Bruce Logan's lab at Penn State University, researchers are working on developing microbial fuel cells (MFC) that can generate electricity while accomplishing wastewater treatment. In a project supported by NSF, they are researching methods to increase power generation from MFCs while at the same time recovering more of the energy as electricity. Through their research projects, Logan’s team has already proven that they can produce electricity from ordinary domestic wastewater.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. A field trip to the bakery is in order to celebrate Ms. Frizzle's birthday. But how can the class get her the cake she deserves when the bus shrinks them, and they end up baked inside the cake?
Ice cream is so much more than just a delectable delight. It's a complex matrix of crystals, bubbles, and globules. Fortunately, the delicate structure of ice cream is held together by a combination of chemical reinforcements and top-of-the-line freezing technology. This allows the perfect mix to be delivered to the mouth where the chemicals explode in a fantastic release of flavor and texture. Part of the "Science to Go With Dr. Joe Schwarcz" series.
Showing collections 1 to 6 of 6
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
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
