Episode 51: Filtering Muddy Water
When there is no clean water in the mountains, what should one do? This episode of Little Science Hunters is filled with different kinds of water filtering materials, such as using a bamboo as a straw, using a cloth as a simple filter, and one could drink the water immediately. In this episode, the teacher helps the students understand the circulatory system. After exercising, one’s body temperature would rise, the heart rate would increase, as well as the blood flow. It is the body trying to get rid of heat and waste.