We use the ‘Flesch–Kincaid Grade Level Formula’ to present scores as per US grade level. See all the grade levels here. Following articles, stories and features are appropriate for people at reading level of Grade 7 (Age 12-13 years). More information about Flesch–Kincaid readability tests can be found here.
How Do Fish Survive in Icy Waters?
In cold winter months, lakes and rivers freeze over forming ice. Yet, fish and other aquatic animals manage to survive. Animals …











