Science A-Z · GK-2
Seasons and Sunlight FOCUS Question How does the amount of sunlight in a day change during the four seasons?
四季与阳光焦点问题四季中一天的日照量是如何变化的?
Long and Short Days People say that summer has long days. How can this be? All days have 24 hours! The number of hours in a day does not change. But the time when the Sun comes up in the morning does change. So does the time when the Sun goes down at night.
人们说夏天的白天很长。 这怎么可能呢?每一天都有24小时!一天的小时数是不变的。 但是早晨太阳升起的时间确实在变化。 晚上太阳下山的时间也是如此。
Sometimes the Sun comes up early in the morning. Then it goes down late at night. On these days, there are more minutes of light. We call this a long day. Sometimes the Sun comes up late and goes down early. On these days, there are not as many minutes of light. We call this a short day.
有时太阳在早晨早早地升起。 然后是深夜。 在这些日子里,有更多的阳光。 我们称这是漫长的一天。有时太阳升起得晚,落下得早。 在这些日子里,没有那么多的光照时间。 我们称之为短暂的一天。
Fall into Winter When fall begins, daytime and nighttime have the same number of minutes. Then the days get shorter. There are fewer minutes of light each day. Nighttime is longer than daytime. The weather becomes cool. Word Wise The fall season is also called autumn (AW-tum).
秋天开始的时候,白天和晚上的分钟数是一样的。 然后白天变短了。 每天的光照时间越来越少。 夜间比白天长。 天气变凉了。秋天也被称为autumn (awo -tum)。
Cold Winter Days The Sun comes up later each day. It goes down earlier. Winter begins on the shortest day. This day has the fewest minutes of light all year. On a winter morning, it is dark and cold outside!
寒冷的冬天太阳每天都升起得较晚。 它下降得更早。冬天从最短的一天开始。 这天是全年白昼时间最短的一天。 冬天的早晨,外面又黑又冷!
Spring Forward! Spring is coming! The Sun comes up earlier. It goes down later. Daytime gets longer. But it is still cold. It takes many weeks for the Sun to warm things up.
春天前进!春天来了!太阳升起得更早。 它稍后会下降。白天变长了。 但是天还是冷的。太阳需要数周的时间才能使物体变暖。
