This study was designed to examine the readability level of some approved Science textbooks in use in Junior Secondary Schools in Ebonyi State of Nigeria. The sample of the study consisted of three (3) approved Science textbooks, 21 Junior Secondary Schools randomly selected from the 3 Education zones of the State. The instrument used for data collection is Science Textbook Readability Text (CSTRT). The data were interpreted using a standard guideline for calculation and readability level by Harrison (1980). The results of the findings showed that the approved Science textbooks were very readable. Based on the findings, conclusion were drawn and it was recommended that Science textbooks should be revised periodically to enrich the readability of the textbooks
Keywords: Examination, Learning, Readability Level, Science Textbook, Teaching