Meteor Page General information about meteors as well as links to related articles on planning a meteor watch, observing meteors, meteors that changed the world, and information about specific meteor showers. Small Comets Learn more about the theory that millions of small comets strike the earth yearly and break up into water vapour. Some scientists believe that they are the source of water in Earth's oceans and atmosphere. The Solar System StarChild is a comprehensive NASA site developed for elementary students. Each of these sections provides a brief introduction with all terms defined in a gloasary, a comprehension question, and a probing question.
All pages come in two reading levels and can be printed.
StarDust Launched in February 99, StarDust is a NASA mission that will fly close to a comet and bring cometary material back to Earth. TrackStar is an online interface which allows instructors to create lessons for students by sequencing existing instructional content in various web sites within a lesson. Students explore one topic at a particular location within one web site then move on to the next topic at another web site. The list of topics remains visible throughout the lesson so that students can remain on track. Explorations of the web sites beyond the designated instructional content are also possible.