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9

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  • Person in a science lab. One beaker contains an orange liquid, and one beaker contains a green liquid. Caption: It's orange. That means its pH is 5.

    Acids and bases are important to many chemical processes: maintaining a stable internal environment in the human body, baking a delicious cake, or determining whether a lake can support aquatic life. Reactions involving acids and bases can be described through the transfer of protons. The reactions of acids and bases, which can be monitored with indicators, can range from corrosive behavior to neutralizations that leave no acids or bases behind. To understand the controlling of pH of solutions, buffers are discussed in the laboratory and in the chemistry of the bloodstream. Part of Chemistry: Challenges and Solutions Series.

    (Source: DCMP)

  • Earth as seen from space. Caption: (narrator) Terraforming is making an alien world more like Earth.

    Explores space stations, lunar bases, and Mars landings as possible solutions to earth's environmental and overpopulation problems. Questions cover both positive and negative aspects of this ambitious, speculative future.

    (Source: DCMP)

  • Chlorine and hydrogen atoms joined. Caption: What are some of the different types of chemical compounds?

    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.

    (Source: DCMP)

  • The molecular structure of D N A and R N A are depicted. Or The D N A double helix structure has two phosphate deoxyribose chains with the nucleotide bases are single bonded to it. The R N A single helix structure has a single phosphate deoxyribose chain with nucleotide bases attached to it.

    Why is RNA just as cool as DNA? Join the Amoeba Sisters as they compare and contrast RNA with DNA. Part of "The Amoeba Sisters" series.

    (Source: DCMP)

  • A turtle and a school of small fish swimming underwater. Spanish Caption: O sea, no hay bases tecnicas ni biologicas

    This series explores the relationship between humans and the sea and focuses on the life of the sea turtle. Turtles worldwide face serious threats of extinction; however, conservation efforts are trying to preserve this species. Part of the "Turtle World" series.

    (Source: DCMP)

  • Person pouring fluid from a 5-gallon bucket into a large metal vat. Caption: Most people don't think about the chemistry

    Cosmetics are big business. They are used by almost every person walking on the Earth. Shows how cosmetics are made and how they have been used for thousands of years. Outlines bases, bulking agents, coloring agents, fragrances, and preservatives. Demonstrates the making of an emulsion and explains the processes of distillation or solvent extraction.

    (Source: DCMP)

  • Cartoon of a superhero flying above Earth. Spanish captions.

    Sherlock Olmos decides to dig deeper into dark corner of this great house to investigate the suspicious behavior of some chemical elements. The exchange of electrons and the characteristics of hydrogen, fluorine gas, and the noble gases are the primary subjects of his investigation. Part of Chemistry: Solved by Sherlock Olmos Series.

    (Source: DCMP)

  • Illustration of an Na atom with no electrons on the third, outer ring. Caption: When an element loses all the electrons

    Sherlock Olmos decides to dig deeper into dark corner of this great house to investigate the suspicious behavior of some chemical elements. The exchange of electrons and the characteristics of hydrogen, fluorine gas, and the noble gases are the primary subjects of his investigation. Part of Chemistry: Solved by Sherlock Olmos Series.

    (Source: DCMP)

  • Double helix strand of DNA with protein pairs on each step. For example, AT and CG. For each pair, one letter is smaller than the other. Caption: one large, and one small--

    In the early 1950s, American biologist James Watson and British physicist Francis Crick came up with their famous model of the DNA double helix. The structure of DNA, as represented in Watson and Crick's model, is a double-stranded helix. The sugar-phosphate backbones of the DNA strands make up the outside of the helix, while the nitrogenous bases are found on the inside and form hydrogen-bonded pairs that hold the DNA strands together. Other topics covered include DNA replication, RNA transcription, and RNA translation. Part of the "Biology" series.

    (Source: DCMP)

Collections

2

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  • Chemistry

    • Video
    • Image
    • 2.5D Tactile Graphic
    • PDF
    • Text Document
    • Simulation

    A collection of Chemistry related resources

    A collection containing 67 resources, curated by Benetech

  • Biology

    • Video
    • Image
    • Text Document
    • PDF
    • 2.5D Tactile Graphic
    • 3D Model
    • Audio File

    Biology related concepts

    A collection containing 59 resources, curated by Benetech