This study aimed to investigate the effectiveness of using the interactive whiteboard in teaching science in achievement and the development of cognitive thinking skills among students of grade 10. The study sample consisted of 62 female students, divided into two groups, experimental group which consisted of 29 girls from Zahrat Quraish basic school and studied the unit "Energy Flow in Technological system" using the interactive whiteboard. While the control group consisted of 33 girls from Zainab A'thaqafia basic school and studied the same unit using the traditional whiteboard. To achieve the objectives of the study, two tests were prepared, achievement test and a test to measure the cognitive thinking skills. The validity of the tests were verified by introducing them to arbitrators. The realiability of the achievement test was verified by re-applying it in which the Pearson correlation coefficient reached (0.85) and the reliability of cognitive thinking skills's test was calculated using alpha Cronbach's which amounted to (0.71). Then the tests were applied to experimental and control groups before applying the treatment to ensure the equivalence of the two groups. Then the two tests were re-applied to the groups after they studied the unit and the results were analyzed using SPSS statistical analysis. The results show that there was a statistically significant difference between the mean scores of the students in the posttest of achievement at the significance level (a = 0.05) in favor of the experimental group, and there was also a statistically significant difference between the mean scores of students in the cognitive thinking skills posttest at the significance level (a = 0.05) in favor of the experimental group. Based on the findings of this study, the researcher presented a number of recommendations and proposals including: the need to develop and implement training courses for teachers to introduce them to how to employ interactive whiteboard in the right way and to take utilize it to support science education, and to conduct further studies, including a study to investigate alternative conceptions of students and processed them using the interactive whiteboard.