The study was intended to find out the relationship between Achievement in Science Subjects and Achievement in Language. The three language formula that we follow in schools and the new 2 year B.Ed. curriculum give much importance to language education. Language education mainly aims at cultural and moral development along with communication skill. Science education and research in science and technology play a crucial role in the development of the individual, society and nation. So it is the need of the hour to find out whether there is any relationship between Achievement in Science and Achievement in Language and whether it is directly proportional or indirectly. The study was conducted on a representative sample of 600 pupils of standard IX from 15 schools of Thrissur, Palakkad, Malappuram, Kozhikode and Kannur revenue districts of Kerala using stratified random sampling technique. Achievement tests were used as the tool. The study proved a significant difference in mean scores of Achievement in Physics and Achievement in Language. The correlation between Achievement in Physics and Achievement in Language for total sample and sub-samples were also significant. It was also found that higher the Achievement in Language the more the Achievement in Physics and vice versa.