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 »

Tour of the Electromagnetic Spectrum  read more »

Help scientist do real science by helping to identify surface features on the Moon - craters and boulders. A fun way to get involved in real science using real data.

Units of lesson plans:
Our Star the Sun
Changing Weather

School-to-School - connect with other classrooms using this moderated and sage web-based communication tool for young students  read more »

COSMIC TIMES: POSTERS, LESSONS AND TEACHER GUIDES FOR GRADES 7-12  read more »

Wall-E Learns About Proportion Video – Grades K-8
A fun short video clip.
Students calculate the diameter of the moon with the help of Wall-E the mischievous robot.  read more »

Unusual mathematics problems in space science and astronomy. http://spacemath.gsfc.nasa.gov/  read more »

What if students could learn the periodic table with a fun, interactive simulation?  read more »

Genesis education modules are written for K-12 classroom teachers and capture student interest by using the Genesis mission as a real-world link.  read more »