Attack on Iraq Operation Desert Fox and Operation Northern Watch by Borgna Brunner December 16, 1998, marked the beginning of four days of air strikes launched against Iraq by…
ELECTROMAGNETELECTROMAGNET AT WORKMAGNETIC LEVITATIONELECTROMAGNET IN ACTIONBIOGRAPHY: HANS CHRISTIAN OERSTED Danish, 1777-1851BIOGRAPHY: MICHAEL FARADAY British, 1791-1867TRANSFORMERSFIND OUT…
THE VOYAGER MESSAGELIFE ON EUROPA?SCANNING THE SKYPRIMITIVE LIFELOOKING FOR SIGNALSEXTRASOLAR PLANETSTHE DRAKE EQUATIONFIND OUT MOREEarth is the only world we know of that supports life. But is…
METAL GROUPSGOLD IN QUARTZEXTRACTING GOLDMETALLIC PROPERTIESALLOYSFIND OUT MOREAlmost three-quarters of all elements are metals, such as gold and silver. There are also some elements we may not…
FERTILIZATIONWIND DISPERSALCROSS FERTILIZATIONPOLLENPOLLINATORSFIND OUT MOREThe male sex cells of seed plants (flowering plants, conifers, and cycads) are contained in tough capsules called…
AIR PRESSUREWATER PRESSUREFIND OUT MOREWhen you press or push something, the force you apply is called pressure. Pressure is measured as the force you use divided by the area over which you use…
INSIDE A SEEDSPREADING WITHOUT SEEDSGERMINATION OF A RUNNER BEANFRUITSFIND OUT MOREMost plants grow from seeds. These seed plants fall into two groups, angiosperms and gymnosperms. Angiosperms…
WOODY TISSUEFORESTSEVERGREEN TREESDECIDUOUS TREESFIND OUT MOREThese tall, seed-producing plants live for many years and do not die in winter. Trees have a single woody stem, called a trunk,…
Biggest
Land mammal: African elephants weigh up to 14,000 pounds and can eat as much as 600 pounds of food a day! Their trunks contain as many as 100,000 different muscles.
Marine…
