Places to find Citizen Science projects (they aren't all astronomy related):

Citizen Science Central (Cornell Lab of Ornithology) http://www.birds.cornell.edu/citscitoolkit/projects  read more »

NASA and Microsoft collaborated to create a Web site where Internet users can have fun while advancing their knowledge of Mars.  read more »

The Impact Cratering Lab exercises introduce a geologic process that has had major consequences for the geology of all solid bodies in the solar system and for the biology of Earth.  read more »

Explore! Jupiter's Family Secrets will acquaint you with Jupiter and NASA's upcoming Juno mission!  read more »

For the NASA Summer of Innovation, NASA Aerospace Education Specialists have developed six 30-hour thematic units of NASA content.  read more »

- Comet on a Stick activity - Grade level 3-5
- Children's Activities
- What is a Comet?
- Comet Sisters Story & Activity Extension
- Extreme Navigation - Grade level 5-8  read more »

A set of lessons exploring ice in the Solar System:

Inquiry Icebreaker: An Ice Experience
1. Melting and Freezing
2. Ice has Structure
3. Ice is a Mineral
4. Ice Floats
5. Ice Flows  read more »

IYA Discovery Guides  read more »

http://phoenix.lpl.arizona.edu./edu_life.php  read more »

Grades 3-5 Lessons http://phoenix.lpl.arizona.edu./edu_whywater_lessons.php
Grades 6-8 Lessons http://phoenix.lpl.arizona.edu./edu_whywater_lessons3.php  read more »