On second pass, 4-year-old Neyra Mesic was ready.
“I want a worm,” Mesic said, pulling her thumb from her mouth. She tugged on teacher Wendy Brenneman’s red canvas blouse. “I can do it now.”
Brenneman set a wriggly, brown garden worm on a damp paper towel next to Mesic. Like all the preschoolers attending summer camp Wednesday at the Carnegie Science Center, Brenneman warned her, “We like worms; be gentle.”