We investigated the effect of retrieval practice (i.e., the use of testing to enhance learning) by middle school students on science learning in an authentic educational setting. For initial study, all students (n = 39) read a science text and made study notes about the text, a regular study activity in their course. For restudy (2 days later), students either copied their notes or did retrieval practice. For the final test (an additional 2 days later), all students did a recall task from memory. Students in the retrieval practice condition showed better retention of information than students in the copy condition. These results add to a growing body of research on the use of retrieval practice as an effective learning tool for retention within authentic school settings.