流星雨和彗星有什么亲戚关系？
How are meteor showers related to comets?
彗星靠近太阳时撒下尘埃和碎块，沿轨道铺成“碎片带”；地球每年穿过时，这些碎屑冲进大气燃烧，就成了流星雨。
Comets shed dust and debris that spread along their orbit; when Earth passes through, the bits burn up as a meteor shower.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#流星雨 #彗星
流星为什么会在天上划出一道光？
Why does a meteor streak a line of light across the sky?
流星体高速闯进大气层，和空气剧烈摩擦生热燃烧，拖出亮亮的光尾，没烧完落地的就叫陨石。
A meteoroid plunges into the atmosphere at high speed, friction heats and burns it into a glowing trail; what survives to land is a meteorite.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#流星 #大气层
陨石坑是怎么形成的？
How do impact craters form?
小行星或彗星高速撞上地表，巨大的冲击力把岩石炸飞、挖出一个碗状凹坑，就形成了陨石坑。
An asteroid or comet slamming into the ground at high speed blasts rock away and digs a bowl-shaped pit called an impact crater.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-08-23
来源 · Source
Tarbuck & Lutgens,《Earth Science》第14版,Pearson,2015
E. J. Tarbuck and F. K. Lutgens, Earth Science, 14th ed., Pearson, 2015
#陨石坑 #撞击