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Weather, climate and the water cycle

الأسبوع 16 · المحور الثالث «التغير والثبات»، الوحدة الثالثة «الماء والطقس والمناخ»: ابدأ، المفهوم 1.3 «انتقال الطاقة خلال دورة الماء» (أ) · 3 دروس
1

Weather or climate? Two big words

Science P6: Term 2, Unit 3, pp. 1–9
GoalTell the difference between weather and climate, using Egypt as an example.
New words
weather · the state of the air at one place and time, such as hot, windy or rainyclimate · the typical weather of a place over many yearsseason · a part of the year with its own typical weather
Explanation

Look out of the window. Is it sunny, cloudy, windy or rainy? That is the weather: the state of the air at one place and one time. Weather can change in an hour. Climate is different. Climate is the typical weather of a place over many years. In Egypt the climate is hot and dry in summer and mild in winter, and most of the rain falls along the Mediterranean coast. A hot afternoon in Luxor is weather. Luxor being hot and dry through most summers is climate. We say: weather is what you get today, climate is what you expect over many years. Climate decides what plants and animals live in a place and what clothes people usually wear.

WeatherClimate
Timetoday, this hourmany years
Examplea windy afternoonhot, dry summers
Changesquicklyslowly
Worked examples
Hana says: It rained in Alexandria yesterday, so it rains every day there. Her teacher explains: one rainy day is weather. Alexandria’s rainy winters are climate.
weatherclimate
Karim sorts four sentences: A dusty wind blew this morning (weather). Winters are mild in Egypt (climate). It is 38 degrees at noon today (weather). Summers in Aswan are hot and dry (climate).
DayTemperatureSky
Mon29sunny
Tue31sunny
Wed27cloudy
Mariam keeps a weather diary for a week and writes the temperature each day. A few days show the weather. Many years of diaries would show the climate.
Class activity

Weather diary. For one week, a grown-up and you look outside at the same time each day. Draw the sky and write the temperature (use the weather report, not a thermometer in the sun). At the end say: what is the weather like this week? Then ask a grandparent what the climate was like when they were young.

Practice
1
Is “It is raining now” weather or climate?
2
Is “Egypt is hot and dry in summer” weather or climate?
3
Which changes more quickly, weather or climate?
4
Name two things that climate helps decide in a place.