Science of Backyard Fun, , North Star Editions, R.L. Van,Science & Nature/Physics,JUVENILE NONFICTION, science in everyday life; the science of catch; kids stem books; physics; introduction to physics; science of sports; science of baseball; gravity; sports and hobbies; middle grade science books; frisbee; hoola hoops; hoses; water guns; bubbles,, The Science of Fun, United States, en-UShttps://northstareditions.comscience in everyday life; the science of catch; kids stem books; physics; introduction to physics; science of sports; science of baseball; gravity; sports and hobbies; middle grade science books; frisbee; hoola hoops; hoses; water guns; bubbles, [BLURB],[CITY],,books, ebooks, biblet, Book2look