The present study was conducted to investigate “Matter and Change” activities in the 6th, 7th and 8th Grade Science and Technology Textbook in Turkey in respect to in according with educational attainment, competency of concept teaching, connect with subject and quality of turn of phase after activities. For this purpose, two 6th Grade, one 7th Grade and two 8th Grade Science and Technology Textbooks that used 2011-2012 terms and accepted as essential science textbook by Ministry of National Education were examined by three researchers by document method. According to results, more than half of activities in the textbooks were in consistent with educational attainments. In addition these, some activities have no attainment, some attainments have more than one activity; some attainments have no activities in 6th Grade, and half of attainments have no activities in 7th and 8th Grade. Moreover, wrong or inaccurate definitions and phrases were determined.