BA Science 4ABy Jason Batterson, Stephanie Sadrian, and Mark Eichenlaub. Illustrated by Sarah Leuver and Zachary Sterling. Design by Doa Ar. Recommended for students ages 912. Beast Academy Science 4A is the first in a two part Level 4 science series. BA Science 4A content is aligned to the Next Generation Science Standards (NGSS) for grade 4, but often goes well beyond what is typically expected of students. Science 4A includes units on energy, landforms, and