This study analyzed the 8th and 10th graders' attitude towards learning science (ATLS), required cognitive skills for science examination questions (SEQ), and patterns of actual cognitive skills (ACS), in accordance with the Revised Bloom's Taxonomy (RBT) and the Piagetian Conceptual Frameworks (PCFs). The sample of the study consisted of 564 (boys and girls) 8th and 10th graders of government elementary and high schools in Sindh province of Pakistan. The RBT applied to break down the 8th graders General Science examination questions in terms of Piagetian conceptual frameworks. A Cognitive Science Achievement Test (CSAT) based on the RBT administered to measure [...]