Moon theme poster handwritten newspaper

The moon is a satellite revolving around the earth and the closest planet to the earth.

1. There is basically no water on the moon, and there is no sound propagation. The moon itself does not shine, and it is always black. The sun and stars can appear at the same time. Its volume is only 49 times that of the earth.

There is almost no atmosphere on the moon, so there is a great temperature difference between day and night. During the day, where the sun shines vertically, the temperature is as high as 127 degrees Celsius, and the lowest temperature at night can reach-183 degrees Celsius.

The moon is the only natural satellite orbiting the earth. Its orbit around the earth is elliptical, and its average distance from the earth is about 384,400 kilometers.

The front of the moon always faces the earth. On the front of the moon, the area of the moon land is similar to that of the moon sea, but on the back of the moon, the area of the moon land is much larger than that of the moon sea.

Popular science knowledge of the moon

The moon is also called "the moon". Before the invention of the telescope, ancient people could only look up at the bright moon with their eyes on clear nights. Seeing the bright and dark surface and strange shape of the moon, people made up beautiful myths such as the Goddess Chang'e flying to the moon, Wu Gang cutting Guangxi, and Yu Mian tinkering with medicine. The ancient Greeks regarded the moon as the beautiful hunting goddess themis, and regarded the silver bow that the goddess never left when hunting as the astronomical symbol of the moon.

There is basically no water on the moon, so there is no weathering, oxidation and water corrosion on the earth, and there is no sound transmission. There is a silent world everywhere. The moon itself does not shine, the sky is always dark, and the sun and stars can appear at the same time.

There is almost no atmosphere on the moon, so there is a great temperature difference between day and night on the moon. During the day, where the sun shines vertically, the temperature is as high as127℃; The temperature at night can be as low as-183℃. Because there is no atmospheric barrier, the intensity of sunlight on the surface of the moon is stronger than that on the earth 1/3 or so. The intensity of ultraviolet rays is also much stronger than the surface of the earth. Due to the lack of atmosphere on the moon, many strange phenomena will be seen on the moon, such as the dark sky on the moon, direct sunlight and brilliant sunshine; It's dark where you can't shine. Therefore, we can see that the surface of the moon is bright and dark. As there is no air to scatter light, the stars on the moon no longer seem to twinkle.