Experiencing a Northwest Trek Virtual Field Trip   You could almost touch the anticipation. Twenty first-graders from Tacoma’s Roosevelt Elementary waved excitedly to the face on the big screen in the front of their room – and as teacher Kaylin Gasparach toggled with the screen windows, the face waved back. It was Wendi Mello, keeper at Northwest Trek Wildlife Park, and as the class gasped, the owl on her arm slowly turned its head and blinked. Mello – and the owl – were taking the class on a raptor adventure full of science, learning and animals – a Northwest Trek …