The Cambridge Science Festival will offer Einstein in the Classroom to mark the 100th anniversary of the publication of the Theory of General Relativity.  The program will bring college physics students and professors into Grade 7-12 classrooms for engaging activities about Einstein’s work, in two sessions in February and March.  Topics to be to covered include relativity, spacetime curvature, the life cycles of stars, the relative sizes of the objects that occupy the observable universe.  There will be an information session — for anyone interested in volunteering or learning more about the program — on Tuesday, December 9 at 5:30 at the MIT Museum, 265 Massachusetts Avenue in Cambridge.  For information, contact Peg Legendre, K-12 coordinator for Cambridge Science Festival and Science on the Street, at plegendre@gmail.com.