ATMOSPHEREOCEANSLANDICE AND SNOWEARTH SCIENCESTUDY TECHNIQUESBIOSPHEREAXISFIND OUT MOREThe rocky ball that forms our world is one of nine planets in the Solar System. Earth is a sphere, with a…
Click on a country for a more detailed map, or try our map index. Country Maps — The Middle East Bahrain Cyprus Egypt Iran Iraq Israel Jordan Kuwait Lebanon Oman Qatar…
(Encyclopedia) Jurassic periodJurassic periodjərăsˈĭk [key] [from the Jura Mts.], second period of the Mesozoic era of geologic time, lasting from 213 to 144 million years ago. At the start of the…
(Encyclopedia) Sitwell, English literary family, one of the most celebrated literary families of the 20th cent. Its members included Dame Edith Sitwell, 1887–1964, English poet and critic, Sir Osbert…
acid rain: Rain contaminated with pollutants such as sulfur dioxide and nitrogen oxide. These gases come from fuels being burned at high temperatures and from car exhausts. When acid rain falls, it…
A History and Timeline of Affirmative Action
by Borgna Brunner and Beth Rowen Related Links Affirmative Action Affirmative Action Setbacks Black History Month…
Early Earth EnvironmentOrigin of LifeIntroductionSpontaneous GenerationEarly Earth Environment So if Pasteur is correct and life only comes from existing life, where and how did life begin? Many…
The Far Corners of the Earth: The Final Four LaborsClassical MythologyThe Labors of HeraclesTraining a HeroBeastly Chores: The First Four LaborsEven More Beastly Chores: The Second Four LaborsThe Far…
Getting Down to BasicsWeatherWhat Should I Wear?Playing the OddsGetting Down to BasicsForecasting from the Beginning Although this introduction to weather forecasting may seem flip, it is meant to…
(Encyclopedia) Permian periodPermian periodpûrˈmēən [key] [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale, tablegeologic timescale, table) from 250 to 290…
