Natural History Museum
Natural History Museum: Meteorites
As an online exhibit on meteorites, this site provides a series of topics on meteors answering questions such as what is a meteor, to providing information on types of meteors and studying meteors.
US Geological Survey
Usgs: Geologic Time
This large U.S. Geological Survey site offers a look at the age of the earth, how radiometric dating is used to calculate it, the major divisions of geologic time, and the classification and use of fossils.
University of California
University of California Museum of Paleontology: Geology and Geologic Time
This site provides information about the geologic relationships of rock layers, as well as much about geologic time and the history of Earth.
Australian Museum
Australian Museum: The Geological Time Scale
What was Australia like during prehistoric times? Follow through history from 110 million years ago until the present and discover the different mammals, birds, and reptiles.
PBS
Pbs Teachers: Origins: Earth Is Born
Collect micrometeorites from space -- remnants of the time when the solar system formed about 4.6 billion years ago. Create a sky dust collector, sort particularate matter according to attributes and identify micrometeorites by their...