KS3: for 2006, 5+ target met. 6+ 10% less. Not as high as Maths. KS4: Significant improvement from 2005 A-C. No significant difference between boys and girls in contrast with other subject areas. Highest performances at KS4 (grades A* -B) lower than expected. Significant improvement in A-C for 21st Century Science ( 75% A-C grades) , although number of top grades lower, for the first cohort.