Vocabulary
The layer of gases that surrounds Earth.
Atmosphere
Air sinks toward the ground in this pressure system.
What is a high-pressure system?
The subsystem that includes all living things.
Biosphere
Air rises upward into the atmosphere in this pressure system.
What is a low-pressure system?
The solid, rocky part of Earth including landforms.
Geosphere
When this system arrives, you may need an umbrella or raincoat.
What is low pressure?
All of Earth’s water in any form.
Hydrosphere
It feels warm and sticky outside with dark clouds building. Which system?
What is low pressure?
Lines on a weather map that connect points of equal pressure.
Isobars
Air moves clockwise around this system in the Northern Hemisphere.
What is a high-pressure system?