风是怎么形成的
What Causes Wind
了解风形成的原因：太阳让地球表面受热不均匀，暖空气比较轻，会向上升；较冷的空气会流过来填补空位。空气的这种流动就是风。
Understand what causes wind: the Sun heats the Earth's surface unevenly, warm air rises because it is lighter, and cooler air rushes in to take its place — this movement of air is wind
学习证据 / Evidence
- 说明太阳对地球表面的加热是不均匀的
- 说出暖空气上升，较冷的空气移动过来替代它
- 把这种空气流动定义为风
- Explain that the Sun heats Earth's surface unevenly
- State that warm air rises and cooler air moves in to replace it
- Define this air movement as wind
评估问题 / Assessment
{{name}}能解释风为什么会吹吗——太阳让一些地方比另一些地方更暖，暖空气向上升，较冷的空气就冲过来填补空位？
Can {{name}} explain why wind blows — that the Sun warms some areas more than others, warm air floats upward, and cooler air rushes in to fill the gap?