The Respitory SystemAnatomy and PhysiologyThe Respitory SystemLungs, Bronchi, Trachea, NosePharynxMore Than Just a PipeGas Laws and BreathingVolumes and Volumes It's interesting how many…
HOW DOES A VOLCANO ERUPT? ARE ALL VOLCANOES DANGEROUS? LAVAFIND OUT MOREA volcano is a vent or weak spot in Earth’s crust through which magma (hot, melted rock) escapes as LAVA. In some places,…
GLORIOUS RINGSRING MATERIALFIND OUT MOREA system of shining rings makes Saturn a very distinctive planet. We see the rings from different angles at different times as the planet circles the…
WHO RULED MAYAN KINGDOMS? WHY DID THE MAYA BUILD PYRAMIDS? MAYAN GLYPHSFIND OUT MOREThe Maya lived in Central America and were powerful from around AD 250 to 900. Farmers and traders, they built…
Amish When an Amish couple wants to marry, the man asks a churchman to ask the woman's parents for their approval. If consent is given, the marriage is announced two weeks before the wedding. The…
Berm, Dispersants, Static Kill, and more by Catherine McNiff A-Q | R-W Annulus The space between the pipe and the wellbore. Biodegradation The breaking down of substances by…
Guinea Pigs How to Care for Guinea Pigs A descendant of the wild guinea pigs of South America, today's domesticated guinea pig is viewed by many as an "easy" pet for children. Many parents…
NCAA Tournament Preview 2000 A closer look at this year's Madness by Gerry Brown Marcus Fizer, the Big 12 Player of the Year, looks to guide the surprising Iowa State Cyclones…
About 8,000 mini-quakes a day, and on average, one exceptionally big one per year by Borgna Brunner Earthquakes in residential areas, such as this 1964 one in Seward, Alaska, can…
