1. Formal scientific activities: This is the main form of science education for preschool children, including scientific experiments, scientific games and scientific reading. It aims to cultivate children's scientific literacy and scientific inquiry ability.
2. Informal scientific activities: this is a scientific education activity carried out in daily life, including observing natural phenomena, exploring physical phenomena and understanding biodiversity, aiming at cultivating children's scientific interest and scientific thinking.
3. Accidental scientific activities: This refers to accidental scientific education activities in daily life, such as children's curiosity about a natural phenomenon and their exploration of an object. Such activities can be carried out at any time to cultivate children's scientific interest and scientific inquiry ability.