Evaluate a solution to a complex real-world problem based on prioritized criteria and trade-offs that account for a range of constraints, including cost, safety, reliability, and aesthetics, as well as possible social, cultural, and environmental impacts.

  1. Brain

    ‘Study drugs’ can be dangerous

    The misuse of these ADHD medicines not only constitutes cheating, but they can become addictive and can mess with your head.

  2. Chemistry

    A plant enemy’s enemy

    Plants use chemicals to recruit help in fighting off pests.

  3. Young scientists come to Washington

    Thirty middle school students compete in the inaugural Broadcom MASTERS science challenge.

  4. Tech

    Cars of the future

    New cars will be smarter, safer, more efficient — and able to drive themselves.

  5. Tech

    A greener way to keep flames away

    Scientists use safer materials to create a new flame retardant.

  6. Animals

    Lotion takes a bite out of snake venom

    Scientists discover that a cream can slow the spread of a serpent’s poison.

  7. Science & Society

    Scientist profile: Leroy Hood

    The inventor of the DNA sequencing technique, and Albert Lasker Awardee, embarks on the next big challenge.

  8. Enthusiasm and reward for science

    Meet the high schoolers who won the 2011 Intel Science Talent Search.

  9. Physics

    Explainer: How a synchrotron works

    Giant magnets direct superfast light into beams up to 30 million times as bright as those produced by a laser pointer.

  10. Tech

    Inspired by nature

    Researchers are applying lessons learned from butterflies, beetles, mussels, and other creatures to problems of human survival.

  11. Tech

    A taste for cheese

    Researchers aim for cheese that is tastier, more nutritious, and easier to make than those now available.

  12. Tech

    Drawing energy out of wastewater

    Microbes in a fuel cell can generate electricity from plant and animal waste in water.