Abstract: “This aim of this research was to investigate the effectiveness of lab activities on the performance of elementary school students in learning science concepts. The study was conducted on 50 students of grade 6th studying general science comprising two groups of 25 students each i.e. control group and experimental group. The students were from poor socio-economic background and had no chance of taking part in experimental work before. Control group was instructed through traditional lecture-based teaching method while experimental group got a chance of performing lab activities. The posttest-only control group research design was opted for the collection of data. Students t-test was performed for data analysis. The results showed that there was significant difference in the academic achievement of students of both groups. The students of experimental group had a great understanding of the concept and performed well in this domain as specified by t-value of 5.06 at df=48 which is statist”

Keywords: Activity Based Science Teaching, Concept Buildings