"Mystery of the Moon" PPT courseware

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"Mystery of the Moon" PPT courseware

The Moon The Moon is the closest celestial body to us. Its average distance from the Earth is about 380,000 kilometers. Its average diameter is slightly larger than 1/4 of the Earth's diameter. Its surface area is about 38 million kilometers, which is not as large as our area in Asia. There are undulating mountains on the moon, and there are various names such as oceans, seas, bays, lakes, etc. However, there is actually no water on the moon. The dim black spots on the moon that can be seen with the naked eye are called maria, which are vast plains. There are more than twenty in Yuehai. The largest is the Oceanus Procellarum, which covers an area of ​​about 5 million square kilometers. Since there is no atmosphere on the moon, and the heat capacity and thermal conductivity of the lunar surface materials are very low, the temperature difference between day and night on the lunar surface is large. The moon itself does not emit light, it only reflects sunlight. Its brightness changes with the angular distance between the sun and the moon and the distance between the earth and the moon.

1. What kind of world is the moon?

2. What unsolved mysteries about the moon are mentioned in the text?

Rainfall, Suspension, Reverie

mystery effort once

board any bacteria

Spread on algae once

an estimated age

The sky here is dark, but the surface is filled with bright sunshine. The moon is full of dust, rocks, and craters. It has no water and no life. The moon is a desert.

The name of the moon The moon has many interesting names in ancient Chinese poetry:

The Jade Rabbit (Climbing up the stairs to see the Jade Rabbit, who put up the curtain to cover the silver tower - Xin Qiji)

Night light (What virtue is night light? If it dies, it will give birth? - Qu Yuan)

Su'e (Su'e is another name for the moon - "Young Learning Qionglin")

The first human landing on the moon. After eight years of hard work and successive launches of 10 unmanned Apollo spacecrafts, NASA finally successfully launched the manned Apollo spacecraft to the moon on July 16, 1969. Four days later, after a long journey, the spacecraft entered the lunar orbit, and the first human landing on the moon began. Captain Armstrong first stepped onto the hatch platform. After staring at the unfamiliar lunar world for a few minutes, he moved his right foot and climbed down the escalator with three stops at a time. It took him 3 minutes to climb the 9 steps 5 meters high! Then, his left foot carefully touched the moon, while his right foot still stayed on the step. When he found that there was very little of the moon with his left foot, he mustered up the courage to put his right foot on the moon. At this time, Armstrong was filled with emotion: "That's a small step for a man, but a giant leap for mankind."

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"Mystery of the Moon" PPT courseware 7:

"Mystery of the Moon" PPT Courseware 7 Teaching Objectives 1. Understand the relevant knowledge of the moon and stimulate students' interest in science and exploration of the mysteries of the universe. 2. Learn the new words in this lesson, master hanging, mystery, hard work, ascend, any, estimation, age, mystery,...

"Mystery of the Moon" PPT courseware 6:

"The Mystery of the Moon" PPT Courseware 6 I can read Night falls, the bright moon hangs high, the bright moonlight is a beautiful reverie, explore the mystery, make efforts, the scenery is strange, puzzling, incalculable, through the ages, the mystery has climbed onto any desert, bacteria are spread on the algae, it is estimated to be dark...

"Mystery of the Moon" PPT courseware 5:

"The Mystery of the Moon" PPT Courseware 5 Introduction to the new lesson The moon is a symbol of weakness and tenderness. It is the opposite of hardness and softness to the sun. Since ancient times, the moon has been a symbol of warmth, touching, and ethereal beauty. Looking at the moon can spit you out Words hidden deep in my heart, but you understand...

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Update Time: 2024-11-17

This template belongs to Chinese courseware The second volume of third-grade Chinese compiled by the People's Education Publishing House industry PPT template

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