Science News for Students is a free online STEM (Science, Technology, Engineering, Math) news article site with NGSS topics for students in 6th-12th grade that are published daily. The website describes the writing level as, "both shorter news stories and longer features, all written with a vocabulary and sentence structure aimed at readers 9 to 14 years old."  It is the kid-friendly version of Science News.  Not only does it provide in-class reading material to supplement units in math, science, and language arts, it also has a list of Power Words within each article.