Collins Perfect Science Assessments is a comprehensive science self-assessment series for classes 6 to 10, for schools across all boards. This series adheres to the guidelines of the National Education Policy (NEP) 2020 in which self-assessment is stated as one of the tools for transforming the culture of assessment. This series follows a holistic approach and promotes active engagement with learning. It aims to make the students move away from rote learning; and hence, elevate the status of the student from a passive learner to an active learner and facilitate learner autonomy, higher cognitive abilities and metacognitive engagement. A smooth transition of questions from easy, average to difficult would enable better understanding of concepts, self-analysis and hence excellence in any competitive exam. The workbooks can also be used by teachers for review and assessments in an academic year, if they want to, as each assessment paper has a variety of questions.