Air & Space at Your Place: Radical Rocketry

VIRTUAL Air & Space at Your Place: Radical Rocketry. Learn about the physics behind propulsion and ballistics as you experiment with your own different types of spacecraft, including balloon rockets, Alka-Seltzer rockets, and stomp rockets. Four-week sessions, Feb. 3, 10, 17 & 24. Wednesday, 3-4 pm. For grades 2-5. $75 includes materials. Register at www.sandiegoairandspace.org.