The correct order of the twenty-four solar terms for second graders. How to order the twenty-four solar terms?

1. From February 3rd to 5th at the beginning of spring, the sun reaches 315 degrees of ecliptic longitude.

"Li" means beginning, indicating the beginning of spring when all things revive. The weather is getting warmer and all things are renewed. It is a sign of the beginning of agricultural activities.

On this day spring begins.

2. Rain From February 18th to 20th, the sun moves to 330 degrees of ecliptic longitude.

It means that the climate is gradually warming up, ice and snow are melting, rain is gradually increasing, and air humidity is increasing, but cold air activities are still very frequent.

3. Waking of Insects From March 5th to 7th, the sun moves to 345 degrees of ecliptic longitude.

The spring thunder begins to roar, awakening the insects and small animals hibernating in the soil. The eggs that have spent the winter are about to hatch. This solar term means that spring is getting stronger and the temperature is rising. However, when it is cold and warm, the temperature and wind change greatly.

4. On the vernal equinox from March 21st to 22nd, the sun moves to 6 degrees of ecliptic longitude, and the sun shines directly on the equator.

"fen" means "half". This is the midpoint of the ninety days in spring, called the vernal equinox. On this day, day and night are equal, and overwintering crops in vast areas of our country enter the spring growth stage.

5. On April 5th and 6th of Qingming Festival, the sun moves to 15 degrees of ecliptic longitude.

This solar term means that the temperature has warmed, the vegetation has sprouted, and nature has become a beautiful and clear scene.

6. Grain Rain from April 19th to 21st, the sun moves to 30 degrees of ecliptic longitude.

"Rain produces hundreds of grains." Rainfall will increase on this day, which is beneficial to the growth of grains.

7. Beginning of Summer is from May 5th to 6th. This solar term means the beginning of summer, all things are growing, hot weather is coming, and agricultural activities have entered the busy season of summer prosperity.

8. Xiaoman: May 20th to 22nd, "full", plump. The grains of summer crops such as wheat gradually become full but immature.

9. Ear Grain is from June 5th to 7th, when the sun moves to 75 degrees of ecliptic longitude.

"awn" refers to the fine hairs on the tip of the shell. In the north, it is the time to harvest wheat and plant rice. It is also the busiest time for farming. It is necessary to carry out summer harvest, summer management and summer planting in time.

10. The summer solstice is from June 20th to 22nd. At this time, the sun moves to 90 degrees of ecliptic longitude, and the sunlight shines directly on the Tropic of Cancer. "The sun reaches the north, the sun reaches the longest, and the sun's shadow is short," hence the name "Summer Solstice."

This day is the longest day and shortest night in the Northern Hemisphere, indicating that midsummer is coming and temperatures will continue to rise.

11. Slight Heat From July 6 to 8, the sun reaches 105 degrees longitude, marking the beginning of summer heat in most areas of my country.

12. The Great Heat period lasts from July 22 to 24. At this time, the sun has reached 120 degrees, which is around the time of mid-summer.

This period is the hottest period of the year in most areas of my country, but there are also abnormal years with "not hot summers" and excessive rainfall.

13. The beginning of autumn is from August 7th to 9th. At this time, the sun moves to 135 degrees of ecliptic longitude.

This solar term means that the hot summer is about to end, the sky is clear and the air is clear, autumn is beginning, the grass and trees are beginning to bear fruit, and it is the harvest season.

14. The end of summer is from August 22nd to 24th. "Chu" means end, indicating that the heat is about to pass, the heat will end on this day, and the temperature in most parts of our country will gradually drop.

Since it is the time of autumn harvest, precipitation is very precious.

15. White dew occurs from September 7th to 9th. At this time, the sun reaches 165 degrees of ecliptic longitude. As the direct point of the sun obviously moves south, the temperature in various places drops rapidly, the weather is cool, and the water vapor close to the ground forms white dew on the vegetation at night.

, hence the name "Bailu".

16. From September 22 to September 24, the autumnal equinox, the sun moves to 180 degrees of ecliptic longitude, and the direct sunlight point returns to the equator. This is the midpoint of the ninety days of autumn. On this day, day and night are equal again. From this day on, the northern hemisphere

The days are short and the nights are long.

17. Cold Dew From October 8th to 9th, the sun moves to 195 degrees of ecliptic longitude.

At this time, the direct point of the sun begins to move southward, the temperature in the northern hemisphere continues to drop, the weather becomes colder, and the dew is very cold, so it is called "cold dew wind".

This solar term marks the beginning of winter, indicating that the climate will gradually become colder.

18. Frost falls on October 23rd and 24th, when the sun reaches 210 degrees of ecliptic longitude.

The first frost period in the Yellow River Basin is generally in late October, which coincides with the "Frost Descent" season. Frost is formed by the condensation of water vapor on the ground when it encounters cold weather. Therefore, frost is not frost, but is caused by cold weather, which is very harmful to growing crops.

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19. Beginning of Winter November 7th to 8th, the sun moves to 225 degrees ecliptic longitude, and winter begins on this day.

20. Light snow occurs from November 22nd to 23rd. At this time, the sun reaches 240 degrees longitude, the cold air in the north strengthens, the smell decreases rapidly, and snowflakes appear in the precipitation. However, this is the first snow stage, and the amount of snow is small and not frequent. The Yellow River

Snowfall mostly occurs after the "light snow" solar term in the basin.

21. During the period of heavy snowfall from December 6th to 8th, the number of snowfall days and the amount of snowfall are more than those in the light snow period, and snow gradually accumulates on the ground.