The current study assessed the effectiveness of an environmental approach-based learning method in developing primary science process skills and enhancing cognitive achievement among children. Utilizing validated instruments, this study involved 62 children who were divided into two groups: an experimental group of 32 children, who received instruction based on the environmental approach, and a control group of 30 children, who were taught using conventional methods. The results indicated that the experimental group achieved significantly higher scores on both the science process skills test and the achievement test compared to the control group. Statistical analyses confirmed these differences, demonstrating the superior performance of the experimental group. These findings provide robust evidence of the effectiveness of environmental approach-based learning in improving science process skills and cognitive achievement. It is recommended that early childhood science educators integrate environmental approach-based learning into their science education practices to enhance scientific understanding and engagement among young learners.