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Everything is made of millions of tiny particles. Animations illustrate how matter consists of different types of particles that are responsible for varying characteristics. Concepts and terminology include atom, element, chemical, and compound.
(Source: DCMP)
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.
Lawrencium is a synthetic chemical element with the symbol Lr (formerly Lw) and atomic number 103. It is named in honor of Ernest Lawrence, inventor of the cyclotron, a device that was used to discover many artificial radioactive elements.
(Source: Library Lyna)
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.
Gold is a chemical element with the symbol Au and atomic number 79, making it one of the higher atomic number elements that occur naturally. In a pure form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile trasition metal.
Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements.
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.
Oxygen is the chemical element with the symbol O and atomic number 8. It is a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.After hydrogen and helium, oxygen is the third-most abundant element in the universe by mass.
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 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.
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.
Remixed from Customizable Atom Delux by roman_hegglin. Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements.
(Source: OpenStax)
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.
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.
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.
An expert on exercise physiology discusses the importance of different elements of fitness, and teenagers share personal stories about how exercise helped them achieve and maintain a healthy weight. Exercise also helps build strength, develop endurance, improve agility, boost self-confidence, and connect socially. John Ratey, a professor of psychiatry, describes the growing evidence that aerobic exercise remodels our brains, making us sharper mentally, and providing protection against mood disorders. Teens describe how exercise helped them deal with depression, anxiety, and stress.
Since the beginning of time, humans have used chemical reactions without understanding them. For example, ancient Greek artisans were able to smelt metal, dye fabrics, and make glass. The attempt to transform simple metal into gold and silver was known as alchemy (the forerunner of chemistry as we know it today). By mixing elements, alchemists created chemical reactions which produced new compounds. While alchemists were never able to transform anything into gold or silver, their trails helped shape the science of chemistry. Part of Chemistry: Solved by Sherlock Olmos Series.
Showing collections 1 to 2 of 2
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
