MIT Lincoln Laboratory is offering its Science on Saturdays programs virtually this year, and registration is NOT required. The programs are free and designed for children aged 5-17, their parents, and teachers. On Saturday, October 31 at 10AM, the program will be Our Amazing Atmosphere & Its Gases. Learn about the gases that make up the atmosphere, how dry ice can create dense fog, how liquid nitrogen freezes things. and about an aluminum fuel that releases hydrogen when it contacts pure water. Join via this Zoom link and passcode 629820.