- Origin, evolution and composition of the Earth's atmosphere.
- Structure of the Earth's atmosphere.
- Air pressure.
- Weather: types of clouds, cyclones, anticyclones, wind and precipitations.
The Atmosphere in Geography4kids.com.
Structure, pressure, circulation, greenhouse effect and more.

Watch a simple experiment that demonstrates the existence and the power of air pressure, as well as one of its possible uses.

The weirdest clouds that you'll ever see.
Cloud formations such as the mammatus, the lenticulars or the so called ufo clouds, among others, are perfect examples of how intricate and different nature can be.

Weather and climates in Geography4kids.com.
Factors that condition weather, measuring weather devices, seasons, and more.

The types of clouds in Geography4kids.com.
Stratus, cirrus, nimbostratus and cumulus.

Hurricanes, as seen from orbit.
Awesome photographs of hurricanes taken from various spacecrafts.


Chemical composition of the Earth's atmosphere

Structure of the Earth's atmosphere

Variations of temperature in the Earth's atmosphere

Atmosphere's density and pressure

Atmosphere's pressure and Torricelli's experiment

Water vapour in the Earth's atmosphere

Sun's radiation spectrum (I)

Sun's radiation spectrum (II)

Sun radiations in sunrise and sunset

Snow flakes

Snowflake increasingly magnified up to 36,000 times

Air circulation in the atmosphere

Common types of clouds

The eye of the hurricane

Hurricane Ike from the International Space Station

Formation of cyclones in tandem over Iceland

Karman vortices over the Pacific ocean

Anatomy of a tropical cyclone