Key Idea.
Section 1
A Team of Systems
Earth is not just one big rock. It is made of different parts called systems that work together. The atmosphere is the layer of air surrounding the planet. The geosphere includes all the land, like mountains and valleys.
The hydrosphere includes all the water. These systems are constantly interacting. For example, wind (atmosphere) blows across the land (geosphere), and rain (hydrosphere) falls from the sky.
Section 2
Invisible Cargo
The air in the atmosphere is never empty. It is full of invisible gases. One of the most important gases is water vapor.
Even though we can't see them, gas particles are always moving. They zip around and bump into each other. Because they are so light, they travel easily with the moving air.
Section 3
Wind as a Mover
Air naturally moves from place to place. This moving air is called wind.
Wind acts like a giant transportation belt. It picks up water vapor from the oceans and carries it across the land. This is how water moves from the wet ocean to dry places far inland. The wind transports moisture both horizontally across the map and vertically up into the sky.
Expand to review the lesson summary and core properties.
Section 1
A Team of Systems
Earth is not just one big rock. It is made of different parts called systems that work together. The atmosphere is the layer of air surrounding the planet. The geosphere includes all the land, like mountains and valleys.
The hydrosphere includes all the water. These systems are constantly interacting. For example, wind (atmosphere) blows across the land (geosphere), and rain (hydrosphere) falls from the sky.
Section 2
Invisible Cargo
The air in the atmosphere is never empty. It is full of invisible gases. One of the most important gases is water vapor.
Even though we can't see them, gas particles are always moving. They zip around and bump into each other. Because they are so light, they travel easily with the moving air.
Section 3
Wind as a Mover
Air naturally moves from place to place. This moving air is called wind.
Wind acts like a giant transportation belt. It picks up water vapor from the oceans and carries it across the land. This is how water moves from the wet ocean to dry places far inland. The wind transports moisture both horizontally across the map and vertically up into the sky.