These activities are designed to help the child become aware of and appreciate the diversity of the world. By examining the human, plant, and animal worlds, the child gains exposure to the life that surrounds him or her. The child is taught to respect and take care of the environment. Even the younger child experiments with air, water, and electricity, among other elements. The child is able to develop his intellect by thinking about the relationship between the causes and effects of each experiment. Rather than just inundating the child with a lot of facts and information, experiments allow the children to grasp a clearer understanding of their physical environment through hands-on activities. The child then develops new ways of thinking and sharpens his or her memory.