This research aimed to identify the effect of using virtual laboratories in developing cognitive achievement and creative thinking in the Science Course of the elementary third graders in Al-Taif. To meet these aims, the semi-experimental research was used to study the relationship between the research variables. The research sample consisted of 60 pupils, divided into two groups, the control group (N=30), who used the regular laboratory in the school, and the other experimental group (N=30), who studied using the virtual lab. To collect data, the research utilized a cognitive achievement test and a creative thinking scale. Among the most important results that there were statistical differences between the mean scores of the control and experimental groups in the overall degree of cognitive achievement levels and creative thinking skills in favour of the experimental group pupils. The research recommended that building virtual science laboratories that operate permanently alongside school laboratories would contribute to the development of cognitive achievement and creative thinking skills of the elementary third graders.