Eight Photos of Obama Looking Fascinated by Kids’ Science Projects

Being president often means looking thoughtful while standing next to new technology.

May 27, 2014, 11:09 a.m.

Re­mem­ber that photo of a sur­prised Pres­id­ent Obama watch­ing a can­non blast a marsh­mal­low across the room, as the 14-year-old who in­ven­ted the con­trap­tion looks on?

Well, it’s that time of year again. The pres­id­ent made his rounds on Tues­day at the fourth an­nu­al White House Sci­ence Fair, meet­ing with kid geni­uses and check­ing out their pro­jects and ex­per­i­ments. And that meant show­ing a lot of in­terest. Here are sev­er­al pho­tos from the day.