Scientists discover greenhouse gas 7,100 times more potent than carbon dioxide. Girls Lead in Science Exam, but Not in the United States - Interactive Graphic. Girls outperformed boys in more countries in a science test given to 15-year-old students in 65 countries — but in the United States, boys led the girls.
Countries in Asia and Northern Europe had high scores, and 15-year-old girls consistently outscored boys. But the opposite was true in the United States, where boys scored 2.7 percent better than girls. The trend in Western European countries and the Americas was similar; boys performed better than girls. Students in Eastern and Southern Europe, and the Middle East, had slightly lower overall scores, but girls consistently did better than boys. The exam, which is given every three years, was taken in 2009 by 470,000 students in 65 developed nations. Researchers say cultural forces keeping girls away from scientific careers are strong in the United States, Britain and Canada but far less pervasive in Russia, Asia and the Middle East. The science of tornadoes: How and where do they form? The intense outbreak of severe thunderstorms in the United States over the past week has spawned at least 38 confirmed tornadoes, with further, unconfirmed reports of nearly twice that number.
And the threat isn't over, as more are expected today and tomorrow as well. The term Tornado Alley is probably quite familiar to everyone. It's an unofficial name given to a swath of land that includes northern Texas, western Oklahoma and most of Kansas, and is where the majority of tornadoes form in the United States. There's a Tornado Alley in Canada as well — actually two, depending on how you look at it. One stretches from Edmonton to Winnipeg, and there's another that runs from Windsor to Ottawa. However, tornadoes don't obey geographic borders or time schedules.
. [ Related: Monster tornado tears through southern Oklahoma City ] The ingredients list for a tornado is fairly short. . [ More Geekquinox: Canadians to see a more ‘normal’ summer this year ] What Kid Wouldn't Want This Nuclear Power Plant Playset? Teen girl loses stomach after drinking liquid nitrogen cocktail. Imagine it's your daughter's birthday and she'd like to find a special way to celebrate.
She and her friends head to a bar known for concocting fancy cocktails. She orders one that arrives with a plume of smoke careening off the top. Except the smoke is liquid nitrogen — a chemical element in frozen liquid state that has now become a trendy food and beverage gimmick — and when she swallows the drink it cold burns her stomach so badly doctors have to remove the entire organ. She just turned 18. That nightmarish scenario took place in a Lancaster U.K. bar last Thursday.
Also see: Is ADHD medication helping kids or hurting them? "This girl is the victim of an irresponsible alcohol industry that's now competing on gimmicks," Dr. Biased but Brilliant. 0Share Synopsis In the laboratory, this is labeled confirmation bias; observed in the real world, it’s known as pigheadedness.
Google just keeps killing it. By Deirdre Bailey, I work at an innovative and creative institution.
Perhaps it is because of the freedom we have to explore possibilities that we are often unaware of the depth to many of the simplest resources that are available. It is also without a doubt hard to be constantly adapting one's practice to ever-updating technology applications. Certainly, in this day and age, the sheer volume of resources available in education can be overwhelming. Navigating options and rating their relative value is always intimidating, particularly on the heels of a full 7 hours in front of students. As I continue to stumble upon features in google docs that make my job incredibly easier, I thought it might be valuable to share the simple features I have discovered and am so thankful for. For our most recent science lab data collection. ...which we linked to our google site Qualitative Sample Quantitative Sample. Rainforest mammals. Apple's Data Centers to Be Powered by 100% Renewable Energy.
Rescuer jumps into vat of acid to save coworker. The top four publicly misused chemical terms: A layman's primer. One of the major objectives of the International Year of Chemistry is to make sure the public has a realistic and well-informed understanding of the basic features and functions of chemistry in their world.
Perhaps no other aspect of the discipline is as important in this regard as a sound appreciation of the lexicon of chemical science. As they say, you need to speak their language before you can consider becoming friends with them. Unfortunately, as often happens with scientific terminology, chemical terms seem to acquire new meanings and lives of their own when they collide with popular culture. A physicist would be aghast when he or she finds out what management consultants and new-age gurus have done with the words "quantum", "energy" and "field".
Similarly we chemists find ourselves getting darker and sinking deeper into our armchairs when we are assailed with new-agers' definitions of "organic", "natural", "artificial" and "pure". 1. 2. 3.