Other
Tramline: Dinosaurs: A Prehistoric Adventure for Grades 2 5
Travel across the Internet to learn about dinosaurs in this virtual field trip. The trip is designed for Grades Two to Five. Topics include dinosaur fossils, extinction, paleontology, anatomy, behavior, etc.
Australian Broadcasting Corporation
Australian Broadcasting Corporation: News in Science: Piece of Dinosaur Extinction Asteroid Puzzle Recovered
The first meteorite fossil discovered in this period when tests can be run on it, was found at Chicxulub in Northeastern Yucatan, Mexico. Scientists believe it is part of the meteorite which made the dinosaurs extinct.
Other
Catastrophism and Mass Extinctions
An overview of Walter and Luis Alverez's theory that a large meteorite crashed into earth causing huge tidal waves, showers of ash, and an enormous dust cloud.