Atmosphere

The atmosphere is a mixture of gases that surrounds the Earth. The atmosphere is divided into five layers based on temperature. The atmosphere thins out in each higher layer until the gases dissipate in space. Each planet and even a few moons in our solar system have an atmosphere.

Troposphere

The troposphere is the lowest layer of the Earth's atmosphere. It is where weather occurs, and it contains about 75% of the atmosphere's mass. The temperature decreases as altitude increases in the troposphere. It is important for living things as it provides us with the air we breathe.

Stratosphere

The stratosphere is a layer of the Earth's atmosphere. It is located above the troposphere at an altitude of 10-50 km. It contains the ozone layer, which helps protect the Earth from harmful UV radiation. The stratosphere is also where commercial airplanes fly.

Mesosphere

The mesosphere is a layer of the Earth's atmosphere. It is located above the stratosphere at an altitude of 50-85 km. It is the coldest layer of the atmosphere, and temperatures can reach as low as -100°C. It is also where meteors burn up upon entry into the Earth's atmosphere.

Thermosphere

The thermosphere is a layer of the Earth's atmosphere. It is located above the mesosphere at an altitude of 85-600 km. It is the hottest layer of the atmosphere, with temperatures increasing with altitude due to the absorption of solar radiation. It is also where the auroras occur.

Exosphere

The exosphere is the outermost layer of the Earth's atmosphere. It starts at an altitude of around 600 km and extends out into space. The density of the exosphere is extremely low, and it gradually merges with the vacuum of space. It is also the layer where satellites orbit the Earth.

Planet Earth

Planet Earth, our home in the vast universe, is a treasure trove of ecological wonders. Its atmosphere and diverse ecosystems, from towering rainforests to vast oceans, support a delicate balance of life. The interconnections between plants, animals, and their habitats create a web of life where each organism plays a vital role.

Meteors

Meteors, also known as shooting stars, streak across the Earth's atmosphere. These celestial objects are from space and are mainly composed of rock and metal. When they enter the atmosphere, friction with the air causes them to heat up, creating a brilliant display of light. Most meteors burn up before reaching the Earth's surface in the mesosphere.