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Demonstrates the production and collection of hydrogen in a chemistry lab, and testing of its purity. Also shows and explains other chemical reactions related to this element.
(Source: DCMP)
Part of the "Branches on the Tree of Life" series. Uses crisp graphic animation to describe the molecular-level mechanisms of photosynthesis. Examples of this critical element of plant biology include the major plant groups of mosses, liverworts, ferns, horsetails, and the seed plants (gymnosperms and flowering plants).
Part of a series that features a wide variety of video footage, photographs, diagrams and colorful, animated graphics and labels. Begins with a simple definition of the term and concludes with a critical thinking question. For this particular video, students will focus on the term chemistry. Part of the Science Video Vocab Series.
Every element of earth's ecosystem is needed to maintain the delicate balance that supports all life forms. Groups of people and organizations work to keep and even to restore this balance. Mentions often how life on earth is interconnected and that environmental responsibility is everyone's business.
Presents an overview of a typical ecosystem, introducing and explaining terminology, while stressing the interdependence of its living and nonliving components. Explores basic principles of ecology, and mentions various ecosystems and their general characteristics. Short quiz follows the summary.
Sea otters, the ultimate surf bum, are the crucial element for kelp forests and their diverse ecology. Reviews the history of otters on the Pacific coast and their near extermination. Describes the otters' habitat, physical characteristics, behaviors, diet, and use of "tools." This member of the weasel family has the lushest fur in the world.
Identifies physical characteristics, adaptations, and survival tactics of various kinds of reptiles. Segment 1, Snakes: Describes how snakes move, eat, and reproduce. Segment 2, Crocodilians: Compares and contrasts alligators and crocodiles. Segment 3, Lizards: Looks at some unique physical adaptations of various lizards, such as basilisk lizard, Komodo dragon, Gila monster, and chameleon. Includes suggested classroom activities after each segment.
In this episode, Pinky and Petunia introduce the carbon and nitrogen cycles. Both elements are always on the move and are constantly being converted from one form to another, which is essential for all living things. Part of "The Amoeba Sisters" series.
What is an atom? It is the smallest particle of an element, and everything is made up of atoms. They consist of three basic particles: protons, electrons, and neutrons. The scientific community has experienced significant breakthroughs which have contributed to the understanding of atoms. Other topics covered include atomic number, atomic mass, Bohr model, electron cloud, and isotope.
Tests the heat zones of a Bunsen burner and shows some elements' coloration when placed in the flame. Notes that chemistry is everywhere, in both natural and man-made components.
Explore the basic elements of pregnancy, labor, and childbirth in four chapters. Observe Deborah's experience from the beginning to the end of the childbirth process. Learn techniques to alleviate the pain of labor. Includes graphic depictions of childbirth.
Part of the "Chemistry in Action" series. Describes and illustrates the process of chemical bonding through live action footage and animations. Provides an overview of the role atomic structure plays in the process of bonding. Provides examples of how chemical bonding, including ionic bonds, covalent bonds, and metallic bonds, affects the characteristics of matter. Introduces the following terminology: element, atomic structure, energy level, valence electrons, ionic bonds, crystal lattice, covalent bond, and metallic bond.
Martin, a funny and curious artist, discusses the world of design. He explores the design elements of color and shape of things in everyday life. In this episode, Martin investigates the relationship between design and advances in different types of technology. Part of "The Shape of the World" series.
The cloning of Dolly the sheep can trace its origins all the way back to Charles Darwin's trip to the Galapagos Islands in the 1800s. Darwin's evidence for evolution was overwhelming, but scientists still didn't know how traits passed from parent to offspring. As microscopes improved, scientists were able to see cells divide and eventually discovered the genes that make up DNA. This, along with other technological advances, has opened up an exciting new area of scientific study: nanotechnology.
What happens to the stuff flushed down a drain? How do velocity and friction factor into this system? Get down and dirty to see how the sewer system relies on these elements of force. The experts develop tracking gadgets that journey through the sewer system hot on the trail of the flushed materials. Part of the "Break It Down" series.
A great deal of today's modern technology exists due to the extensive use of the abundant chemical element, Silicon. California's Silicon Valley is where we find several of the world's most innovative and successful technology companies that touch all areas of human needs. Two of these companies, SunTech and Complete Genomics, are on the forefront of the innovative use of computing technology. Through their groundbreaking methods and designs they have harnessed the computing power of the Silicon Valley and applied it to creating more efficient and effective solar power generators as well as cost effective and highly accurate human genome mapping techniques.
What does it take to get a sailboat moving in the water? With the help of some of the Bay Area’s top aerospace engineers, students learn that sailboats don’t simply rely on wind to push them forward but that there are other invisible forces that are fundamental to the process. In fact, the physical elements that make a sailboat sail are the same ones that make an airplane fly.
In 2008, NASCAR driver Michael McDowell lost control of his car and hit the wall at 170 mph. Fortunately, McDowell was able to walk away from the accident, which is a testament to the safety elements NASCAR has instituted. NASCAR officials apply the scientific principle of the conservation of energy to strengthen their safety measures. Part of "The Science of Speed" series.
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)
Meteorologists studying clouds in Europe are learning about the microphysical processes that occur naturally in clouds. This knowledge helps researchers gain new fundamental knowledge that can help improve weather and climate forecast models. Students will discover how scientists study cloud formation by generating artificial clouds in a laboratory. Scientists research how clouds originate and how they react to surrounding natural elements. They will reveal how microwave radiometers, lasers, and satellites are used in researching cloud development.
Showing collections 1 to 3 of 3
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
