Summer night, the sky is full of bright stars, a round of moon hanging in the air.
Niu Niu is playing alone in the yard. Suddenly, Niu Niu finds that there is also a moon in the water basin. Niu Niu is surprised and thinks, "how can there be a moon in the water basin?"
Niuniu said to herself, "it must be that the moon is so naughty. When I think of looking for children to play on the earth, I can't get out of the water basin by accident."
Niuniu decides to bring up the moon and send it home. Niuniu just reached into the basin and the moon disappeared. Why?
After a while, the moon appeared in the basin again. Niuniu was puzzled.
Niuniu thought for a long time, thinking of optical knowledge, Niuniu looked up to see the moon in the sky, she suddenly realized that the moon in the water basin was the reflection of the moon in the sky!
Nature is wonderful.