The present study was undertaken to compare the scientific temper and academic achievement of science and social science stream adolescents of eleventh standard in educational zone Dangiwacha Baramulla-Kashmir. Random sampling technique has been used to select the science and social science students from different higher secondary institutions of educational zone Dangiwacha Baramulla-Kashmir. The sample taken for the purpose consists of 100 science and 100 social science adolescent students. Showkat Rashid and Prof. N.A Nadeem scientific temper scale has been selected to collect data for scientific temper. Academic achievement of the selected sample has been taken as the percentage of aggregation marks in 9^th and 10^th standard. Mean, S.D and t test has been used to analyse the data. The results were found that two groups differ significantly on Curiosity and Objectivity dimention of scientific temper scale. It further revealed that two groups do not differ on Open-mindedness, Rationality, and Aversion to superstition dimention of scientific temper scale. Study also depicted that two groups differ significantly on Academic achievement.