I was looking up information for a co-worker who's grandkids are in town for spring break and found some fun events happening this weekend. We may end up attending at least two of the three events this weekend to enjoy the outstanding Arizona weather. 

Arizona Game and Fish Outdoor Expo

website: http://www.azgfd.gov/outdoor_recreation/showcase.shtml

Saturday and Sunday 9:00 am to 4:00 pm

My family attended the Outdoor Expo last spring.  It is a lot of fun, but be prepared with water and sunscreen.  We enjoyed the kids fishing area and checking out the various wildlife rescue booths. 

Deer Valley Rock Art Center Free Family Festival

website: http://dvrac.asu.edu/

Saturday 10:00 am to 4:00 pm

Challenger Space Center Family Fun Days and Spring Street Faire

website: http://www.azchallenger.org/public.htm

Saturday 9:00 am to 4:00 pm