1. scientificity: the selected content must conform to scientific principles, and correctly explain the related natural phenomena and things in preschool children's lives from the perspective of the whole nature according to objective laws.

2. Enlightenment: It means that the selected content must conform to the knowledge, experience and cognitive development level of preschool children, so that preschool children can achieve their educational goals through certain efforts with the help of teachers, that is, they can understand and accept them.

3. Systematization: It means that the selected science education contents are arranged according to the cognitive rules from near to far, from simple to complex, from concrete to abstract, and from known to unknown.

4. Times: It means that the content of science education should be selected according to the development of the times and the progress of science and technology, so that the selected content can keep up with the times and the development of science and technology and face modernization.

5. Locality: It means that the selection of science education content should be related to the local natural environment and cultural background.

6. Seasonality: This means that the content of science education should be selected in combination with the change of seasons. Choosing the content of science education according to the seasonal principle can not only enrich and deepen preschool children's overall understanding of seasons, but also help preschool children understand the relationship between things and seasons.

The process of science education for preschool children;

1. The process of preschool children's science education is children's own scientific exploration process.

2. The process of preschool children's science education is different from children's spontaneous scientific exploration.

The results of preschool children's science education;

1. The achievements of preschool children's science education have a wide range of meanings, which not only refer to children's scientific knowledge, but also include some scientific experience.

2. The result of preschool children's science education is the product of children's scientific exploration process, not the indoctrination result divorced from children's own scientific exploration process. It is emphasized that children's science education is not an external process imposed on children by teachers.

Dialectical relationship between the process and result of preschool children s science education;

1, in science education for preschool children. The process and result are not antagonistic, nor can they have both, like "fish and bear's paw", but are unified, and the basis of their unity is children's own scientific exploration activities.

2. Process and result interact, depend on each other and promote each other.

3. The process and results are of great significance to the development of preschool children.