SS1 Second Term Geography Lesson Note – Climate

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WEEK 6

TOPIC: CLIMATE

CONTENT:

• Meaning and Elements of Climate.
• Climatic regions of the World.
• Importance of Climate.

SUB TOPIC 1: MEANING AND ELEMENTS OF CLIMATE

Meaning of Climate

Climate is the average weather condition of a place taken for a long period of time. The record of weather must have been taken for at least 35 years before the climate of the place can be established (known).

Elements of Climate

The elements of weather and climate are the same. This is because it is as the elements of weather of a place are measured for a long period of time that we know the climate. These elements include:

1. Atmosphere pressure
2. Temperature
3. Humidity
4. Precipitation (Rainfall, snowfall, hail, fog, mist, sleet, etc.).
5. Winds
6. Sunshine

ATMOSPHERIC PRESSURE

This is the force exerted on the earth’s surface and other objects by air, because of its weight. The instrument used for measuring pressure is called barometer. There are two types of barometer namely. Mercury and Aneroid barometer. On maps, places of equal pressure are joined by lines called Isobars.

Mercury Barometer

TEMPERATURE

The temperature of a place refers to how cold or how hot the place is. In other words, it is the degree of

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