Kari Byron Instagram – Know a kid with an amazing Science Fair project from last year that you think should be recognized? They can upload those great projects to the National STEM Challenge for the chance to come to DC for a major festival celebration! The Challenge is in its final days of submissions. Get the word out! Nationalstemchallenge.com #stem #stemeducation #nationalstemfestival #nationalstemchallenge @explr @nationalstemfestival