abcteach
Abcteach: Solar System Links
[Free Registration/Login Required] This resource provides several links to elementary information about the Solar System. Students and teachers will find charts, graphs, crossword puzzles, word searches, report forms and more.
NASA
Nasa: Landing on Mystery Stuff
At this online lesson plan read about the exciting Comet Nucleus Sample Return Mission. Understand comets and then go and do the word search.