erie, Pennsylvania - April 23, 2013 - It may not feel like spring, but for many home schooled and cyber school students it was a day to play outside. Presque Isle State Park naturalists held their bi-annual homeschool "natural science" day at the rotary pavilion. Fifty students and their families registered for this spring event. It’s a day for the kids to get outdoors and experience nature, with sand exploration and other nature lessons. The kids will also take in a movie at the Big Green Screen at the Tom Ridge Environmental Center.