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Showing 1-17 of 17 Resources
  • Written in Chalk

    Written in Chalk

    Image of the Week

    The world’s chalk deposits are made of fossilized remains of the shells of tiny microscopic algae.

  • Seeing Single Molecules

    Seeing Single Molecules

    Image of the Week

    Pushing the limits of light microscopy to the nanoscale, new technology allows visualization of single proteins in cells.

  • Earth Systems Activity

    Earth Systems Activity


    This activity guides students through building a conceptual model of how carbon dioxide affects Earth's climate

  • The Day the Mesozoic Died

    The Day the Mesozoic Died

    Short Film

    (33 min 43 sec) The disappearance of the dinosaurs at the end of the Cretaceous period posed one of the greatest, long-standing scientific mysteries. This three-act film tells the story of the extraordinary detective work that solved it. Also available in Spanish.

  • Earth's Climate: Back to the Future

    Earth's Climate: Back to the Future


    (1 hr 27 min 59 sec) Earth has been both cooler and warmer in the past, but the change is usually gradual. The current rate of carbon dioxide increase is unprecedented in human history, and solutions to mitigate its effect on global warming are challenging to implement.

  • Calculating Iridium Fallout From an Asteroid Impact

    Calculating Iridium Fallout From an Asteroid Impact


    A worksheet in which students calculate how much iridium was released, and eventually deposited all over the Earth, by the impact of the asteroid that caused the K-T extinction.

  • Screening chemical libraries with robotics

    Screening chemical libraries with robotics


    (1 min 24 sec) Robotic equipment makes it possible to screen massive chemical libraries in just a matter of days.

  • Classroom Activities: Molecular Menagerie

    Classroom Activities: Molecular Menagerie


    To accompany the lecture series Scanning Life's Matrix: Genes, Proteins, and Small Molecules.

  • Microarray Manufacturing Technology

    Microarray Manufacturing Technology

    Click & Learn

    How both gene chips and microarray slides are created.

  • Chemical Genomics: New Tools for Medicine

    Chemical Genomics: New Tools for Medicine


    (58 min 29 sec) Scientists now have the ability to create millions of new molecules. How do they test whether any of these molecules are useful?

  • Probing Genes and Genomes

    Probing Genes and Genomes


    (58 min) To understand life's processes, perturb them. How a process responds to an insult can provide clues about normal function or mimic a specific disease state.

  • Scanning Life's Matrix: Genes, Proteins, and Small Molecules

    Scanning Life's Matrix: Genes, Proteins, and Small Molecules


    In four presentations, Stuart L. Schreiber, PhD, and Eric S. Lander, PhD, open a window onto the fast-paced world of genomic science and chemical genetics.

  • Diversity-Oriented Synthesis

    Diversity-Oriented Synthesis


    (5 min 42 sec) Diversity-oriented synthesis (DOS) is a strategy used by chemical biologists to create a huge diversity of small molecules with potentially useful properties. A scientist working in Dr. Stuart Schreiber's lab shows us how engineering, computer science, chemisty, and biology are all used in DOS.

  • Chemspace



    (1 min 35 sec) The hypothetical relationship of chemical space and biological space is plotted on a three-dimensional graph, giving a glimpse of the future direction of research at the intersections of various disciplines.

  • Small-Molecule Microarrays

    Small-Molecule Microarrays


    (1 min) Microarray technology is useful for screening many small molecules at once. Automated devices have made it possible for thousands of different small molecules to be printed as an array of spots on a glass slide. A single type of protein which has been tagged with a fluorescent marker can then be washed across the array. Any small molecule that binds to the protein can be detected by scanning for spots that are fluorescent.

  • Diversity of Small Molecules

    Diversity of Small Molecules


    (1 min 57 sec) A molecular menagerie of small molecules is displayed, with two particular molecules singled out for attention: rapamycin and furrowstatin, which are discussed in the remainder of Dr. Schreiber's lectures on chemical genetics.

  • Which Balloon Has Hydrogen?

    Which Balloon Has Hydrogen?


    (5 min 7 sec) Air is an invisible gas as are hydrogen and helium. How can you tell if a balloon contains hydrogen? Hydrogen has particular physical and chemical properties that can be tested. Dr. Cech enlists student volunteers to show how a chemical reaction can be used to identify a substance.

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