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  • Cyclohexane Molecular Diagram

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    Cyclohexane is a ring of six carbons, each with two hydrogens attached.

    Figure 2.23 (OpenStax, Biology 2e) caption: Carbon can form five- and six-membered rings. Single or double bonds may connect the carbons in the ring, and nitrogen may be substituted for carbon.

    (Source: OpenStax)

  • Cyclopentane Molecular Diagram

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    Cyclopentane is a ring consisting of five carbons, each with two hydrogens attached.

    Figure 2.23 (OpenStax, Biology 2e) caption: Carbon can form five- and six-membered rings. Single or double bonds may connect the carbons in the ring, and nitrogen may be substituted for carbon.

    (Source: OpenStax)

  • Benzene Molecular Diagram

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    Benzene is a six-carbon ring with alternating double bonds. Each carbon has one hydrogen attached.

    Figure 2.23 (OpenStax, Biology 2e) caption: Carbon can form five- and six-membered rings. Single or double bonds may connect the carbons in the ring, and nitrogen may be substituted for carbon.

    (Source: OpenStax)

  • Pyridine Molecular Diagram

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    Pyridine is a six-carbon ring with alternating double bonds and a nitrogen substituted for one of the carbons. No hydrogens are attached to the nitrogen.

    Figure 2.23 (OpenStax, Biology 2e) caption: Carbon can form five- and six-membered rings. Single or double bonds may connect the carbons in the ring, and nitrogen may be substituted for carbon.

    (Source: OpenStax)

  • 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)

  • Bonding

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    Blue and red spheres form a larger spherical shape. Caption: affects how they bond with other atoms.

    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.

    (Source: DCMP)

  • Diagram of a cell with spherical objects in the middle. Each object has a clear ring around the exterior. Caption: In eukaryotes, a cell nucleus protects the DNA.

    They're neither plants nor animals, yet they are some of the most important life-forms on Earth. This video segment explores the world of single-celled organisms: what they eat, how they move, what they have in common, and what distinguishes them from one another.

    (Source: DCMP)

  • Oxygen Atoms

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    Two oxygen atoms are shown side-by-side. Each has six valence electrons, two that are paired and two that are unpaired. An arrow indicates that a reaction takes place. After the reaction, the four unpaired electrons join to form a double bond. This double bond can also be depicted by an equal sign between two Os.

    Figure 2.10 (OpenStax, Biology 2e) caption: A double bond joins the oxygen atoms in an O2 molecule.

    (Source: OpenStax)

  • Water Molecule

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    In the first image, an oxygen atom is shown with six valence electrons. Four of these valence electrons form pairs at the top and right sides of the valence shell. The other two electrons are alone on the bottom and left sides. A hydrogen atom sits next to each the lone electron of the oxygen. Each hydrogen has only one valence electron. An arrow indicates that a reaction takes place. After the reaction, in the second image, each unpaired electron in the oxygen joins an electron from one of the hydrogen atoms so that the valence rings are now connected together. The bond that forms between oxygen and hydrogen can also be represented by a dash.

    Figure 2.9 (OpenStax, Biology 2e) caption: Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds it forms a water molecule.

    (Source: OpenStax)

  • Protists

    • Video
    Protists, single celled organisms.

    Protists are a diverse collection of organisms. Watch this animated video to find out how these single-celled organisms function.

    (Source: DCMP)

  • Diagram of an atom with two shells displayed on a screen. Inner shell with two electrons is highlighted. Caption: because they aren't in the outermost shell.

    The formation of molecular bonds is an essential part of keeping matter together. The sharing of charges between atoms helps them become more stable. Other topics covered include sharing electrons, bonding tendencies, isomers, VSEPR theory, and molecular geometry. Part of the "Chemistry" series.

    (Source: DCMP)

  • Geometric illustration of atoms. Caption: So here we've drawn in all the atoms.

    Molecules form when individual atoms create bonds by sharing electrons. Understanding how atoms combine to make molecules allows scientists to predict many of the physical and chemical properties of substances. Since the outermost eight electrons are key to forming compounds, this unit shows how the Octet Rule provides a basis for predicting how atoms may gain, lose, or share electrons to fill the slots in their outer shells. A fundamental understanding of how electrons form bonds leads to the three-dimensional shapes of molecules and has implications in all aspects of chemistry. Part of the series Chemistry: Challenges And Solutions.

    (Source: DCMP)

  • Person holding a shoe. Spanish captions.

    Throughout history, Soccer has united all the numerous countries and communities in a single festivity. While soccer has a long history and tradition, the sport also embraces technology to keep it at the forefront of the sporting world.

    (Source: DCMP)

  • Hydrogen Atomic Diagram

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    Diagram of a hydrogen atom, showing one electron in a circular orbit around a single proton.

    Diagram of a hydrogen atom. Design modalities for the image include braille with and without labels, print with and without labels in greyscale, color, and texture.

    (Source: Benetech)

  • Person in gloves and a lab coat handles two mice. One is noticeably heavy. Caption: because a single gene is defective,

    Dr. Jeffery Friedman introduces the genes and circuits that control appetite, including the key role of leptin. Part of the 2004 Howard Hughes Holiday Lecture Series.

    (Source: DCMP)

  • A bone is placed before a wolf, who staring vigilantly at fire.

    This episode explores the timing of when dogs first became domesticated. Most scientists agree that it took thousands of years to develop the deep bond between humans and dogs. Part of the "Eons" series.

    (Source: DCMP)

  • Kidney and Bladder

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    Illustration showing the location inside a male human of the Renal artery and Renal vein connected to the two separate Kidneys with attached Adrenal glands. Leaving the Adrenal glands are two Renal pelvis and Ureter which connects to the single Bladder and finally connects to the Urethra.

    Labelled parts of the Human Bladder and Kidneys

    (Source: OpenStax)

  • Microscopic view of oval shaped organisms. Caption: Ciliates are a group of single-celled organisms

    Explores the microscopic organisms known as the ciliates. They are named for the tiny hairs that cover their bodies. Discusses different species, their habitats, and how they survive. One of nine segments in a series, with all nine available on a DVD.

    (Source: DCMP)

  • A poster for Washington state apples displays apples with a caption apple a day. Only the finest. Caption: an apple a day keeps the doctor away.

    Monoculture is the agricultural practice of producing or growing a single crop, plant, or livestock species at a time. However, this practice puts plants at risk. Part of "The Botany of Desire" series.

    (Source: DCMP)

  • Linked hexagonal structures drawn on graph paper. Caption: Graphene is a single layer of carbon atoms

    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.

    (Source: DCMP)

Collections

5

Showing collections 1 to 5 of 5

  • Chemistry

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    • Simulation

    A collection of Chemistry related resources

    A collection containing 67 resources, curated by Benetech

  • Biology

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    • Audio File

    Biology related concepts

    A collection containing 59 resources, curated by Benetech

  • Animals

    • Video

    Resources to teach younger students about animals

    A collection containing 58 resources, curated by DIAGRAM Center

  • Anatomy

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    • 2.5D Tactile Graphic

    Collection of anatomy resources

    A collection containing 21 resources, curated by Benetech

  • Elements

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    • 3D Model

    3D models and images of the entire periodic table of elements

    A collection containing 118 resources, curated by Library Lyna