Environmental Fair to Educate Children

The 12th annual Environmental Education Fair, featuring exhibits and activities for children and their families, will be held at the Los Angeles State and County Arboretum in Arcadia on Saturday.

The daylong event will feature experts speaking on environmental issues, hands-on activities for children and informational exhibits by local organizations.

Call (818) 821-3222.

ASTRONOMY

Exploding black holes and time travel will be some of the phenomena examined in “Stephen Hawking’s Universe,” the Santa Monica College Planetarium program on Friday and on March 20, April 3 and April 10. All shows begin at 8 p.m. after the Night Sky Show at 7 p.m. Call (310) 452-9223.

HEALTH/MEDICINE

Dr. Devra Lee Davis, a National Academy of Sciences scholar, will discuss cancer increases in industrial countries on Wednesday at noon in Room 13-105 of the UCLA Center for Health Sciences. Call (310) 206-4702.

BIOLOGY

The neurobiology of awareness will be addressed in “When Looking Is Not Seeing! Toward a Neurobiological Theory of Awareness,” a lecture by Caltech professor Christof Koch at 8 p.m. Wednesday in the Beckman Auditorium on campus. Call (818) 356-4652 or (800) 423-8849.

ORNITHOLOGY

The current status of the endangered California least tern and recovery efforts undertaken for the bird will be the topic at the Los Angeles Audubon Society meeting tonight at 8 p.m. in Plummer Park. An identification workshop will precede the meeting at 7:30 p.m. Call (213) 876-0202.

MARINE SCIENCE

Naturalists from the Santa Barbara Museum of Natural History will be leading whale-watching trips Saturday and Sunday and March 21 and 22. All trips depart at 9 a.m. For registration forms, call (805) 682-4711.