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Geography

WIND

Direction Wind direction is determined using wind vane. How It Works As the wind blows the arrow swings. The arrow points in the opposite direction of the wind flow. The… Read More »WIND

Geography

HUMIDITY

Humidity is the condition of atmosphere with reference to its water content. It’s measured with hygrometer or psychrometer which consists of wet and dry bulb thermometers kept in Stevenson screen.… Read More »HUMIDITY

Geography

SUNSHINE

Duration of sunshine is measured using Campbell stokes sunshine recorder. How It Works Spherical lens focuses light on sensitized paper. The paper burns when the sun is shining. The total… Read More »SUNSHINE

Geography

RAINFALL

Rain gauge is the instrument used to measure the amount of rainfall in a day. It should be made of impermeable material which can’t absorb water. How It’s Used/Works It’s… Read More »RAINFALL

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TEMPERATURE

Degree of hotness of an object or a place. It’s measured using 3 types of thermometers namely: Maximum thermometer Minimum thermometer Six’s thermometer   Maximum Thermometer It’s used to measure… Read More »TEMPERATURE

Geography

THE WEATHER

Daily atmospheric conditions of a place at a particular time. Elements of Weather Temperature Humidity precipitation Precipitation Atmospheric pressure Wind Sunshine Cloud cover   A Weather Station -A place where… Read More »THE WEATHER

Geography

THE EARTH AND THE SOLAR SYSTEM

THE EARTH AND THE SOLAR SYSTEM 

Solar system is the group of heavenly bodies comprising the sun and the nine planets.

The origin of the Solar System

Theories

A theory is a set of reasoned ideas intended to explain facts or events

Passing Star Theory
A star with a greater gravitational pull passed near the sun
It attracted large quantities of gaseous materials from the sun
The materials split, cooled and condensed to form planets
The planets were set in orbit by the passing star

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