Geographical zone

The Earth is divided into five main areas called geographical zones. These zones are based on lines that run around the Earth called circles of latitude. The differences between these zones are mostly about climate, or the kinds of weather and temperature each area usually has.

The five zones start from the North Pole and move toward the South Pole. The first is the North Frigid Zone, which is very cold and close to the North Pole. Next is the North Temperate Zone, where many places have mild weather with changing seasons. The Torrid Zone is near the middle of the Earth and is usually warm or hot all year. After that comes the South Temperate Zone, which also has mild weather and changing seasons, but in the opposite direction. Finally, there is the South Frigid Zone, which is very cold and close to the South Pole.

These zones help us understand why some parts of the world are very hot, very cold, or have temperatures that change throughout the year. They show how the Earth's shape and its tilt affect the climate in different places.

Torrid Zone

The Torrid Zone, also called the tropics, is a warm area of Earth between the Tropic of Cancer and the Tropic of Capricorn. In this zone, the Sun shines directly overhead at least once a year. Near the Tropic of Cancer, this happens around the June solstice, and near the Tropic of Capricorn, it happens around the December solstice. The Sun passes overhead twice each year between these two lines.

This zone includes places such as southern Mexico, Central America, parts of northern South America, and many areas in Africa, Asia, and Australia. It also covers islands in the Pacific Ocean like Melanesia, Micronesia, and Polynesia.

Temperate zones

The temperate zones are areas where the Sun is never directly overhead, leading to mild climates that change from warm to cool. These regions experience four seasons: spring, summer, autumn, and winter.

The North Temperate Zone includes parts of North America, Europe, North Africa, Northern Asia, East Asia, and more. The South Temperate Zone includes parts of Australia, New Zealand, southern South America, and southern Africa.

Frigid zones

The two frigid zones, or polar regions, are very cold areas near the North and South Poles. In these places, there are special lighting effects: the midnight sun and the polar night. Near the edges of these zones, there is one day in winter when the Sun does not rise, and one day in summer when the Sun does not set. At the very center, the pole, the day lasts a full year with six months of daylight and six months of night.

These frigid zones are the coldest parts of Earth, often covered in ice and snow. They receive sunlight at a slant, which means they get less direct heat. Summer here is short, lasting about 2 to 3 months, and during this time, the Sun shines almost all day.

History

Long ago, ancient Greek thinkers like Parmenides and Aristotle came up with the idea of geographical zones. They thought the Earth could be divided into three climate areas based on how far they were from the equator.

Aristotle called the very hot area near the equator the "Torrid Zone." He also believed the areas near the poles, where it was always cold, were the "Frigid Zones." He thought only the area between these, called the "Temperate Zone," could be lived in. But we now know people live in many different climates, even in very cold places like inside the Arctic Circle.

Later, as people learned more about the Earth, they found another "Temperate Zone" and another "Frigid Zone" in the south. Although Aristotle's ideas were simple, they were mostly right. Today, we use a system created by a scientist named Wladimir Köppen to describe the world's climates. His system looks at things like how much it rains and the temperature to divide the Earth into five main climate regions.