HSEF - What does HSEF stand for? The Free Dictionary
References in periodicals archive
The HSEF provides them with an opportunity to polish their research exhibit presentations before they compete against the world's best and brightest.
The high school runners-up and middle school regional science fair winners have also been selected to compete at the HSEF.
On September 11th, HSEF
students and staff witnessed the implosion of the first building and were caught in the wind tunnel of smoke and debris.