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How does a scab form?

Scabs patch up holes in the skin. Certain cells in our bloodstream recognize when our skin has been broken. These cells, called platelets, start patching the break in the skin and call in other…

Land Snails and Their Life Cycle

Distributor:Klaudiusz Jankowski ProductionsAge Level:9 and up Amazing photography illustrates the life cycle of the land snail.

Baseball's Sale of the Century

Baseball'sSale of the Century by John Gettings Just because the baseball season is over doesn't mean Mark McGwire and Sammy Sosa have to stop breaking records. Baseball fans can expect…

Weather: The Perfect Storm?

The Perfect Storm?WeatherBlowing Cold and Hot: The Big OnesWinter Gone SouthBig-City SnowsStorm of the Century?The Greatest One of AllModern Winter of Deep SnowsGalveston Storm SurgeThe Great New…

Weather: Winter Gone South

Winter Gone SouthWeatherBlowing Cold and Hot: The Big OnesWinter Gone SouthBig-City SnowsStorm of the Century?The Greatest One of AllModern Winter of Deep SnowsGalveston Storm SurgeThe Great New…

Lloyd Webber, Andrew

(Encyclopedia) Lloyd Webber, Andrew, 1948–, British theatrical composer. A member of a successful musical family, he began composing musicals as a teenager; Joseph and the Amazing Technicolor…

Franklin, Aretha

(Encyclopedia) Franklin, Aretha, 1942–2018, American singer and pianist, b. Memphis. The daughter of the well-known minister C. L. Franklin, she began singing in the choir of his Detroit Baptist…

What causes thunder?

What causes thunder? When a bolt of lightning shoots through the atmosphere, it heats the air to an amazing 50,000 degrees Fahrenheit in a tiny fraction of a second. The superheated air rapidly…

Ashley, Merrill

(Encyclopedia) Ashley, Merrill, 1950–, American ballerina, b. St. Paul, Minn. as Linda Michelle Merrill. She studied (1964–67) at the School of American Ballet, joining the parent New York City…