Unit 4: Weather Systems

Learn what causes wind and how to measure it.

Learn about humidity and the many forms of precipitation.

Learn how clouds form and how they can be grouped into different categories

Learn how cumulus clouds form.

Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?

Learn about the science behind the four main causes of turbulence.

Hurricanes are a kind of tropical cyclone. But where do they come from? And why do they cause so much damage? This article will answer all your storm-related questions!

Acid rain is any precipitation that has an unusually low pH. It can be rain, snow, fog, etc. But what is a low pH and why is this a problem?

Tornadoes are a common extreme weather phenomenon in Canada. How are they formed? How can you stay safe? And what is a storm chaser?

When thunder and lightning occur but the main form of precipitation is snow, not rain, it’s called thundersnow.

Meteorologists use computer models to predict the weather. Learn why, despite advances in computer science, meteorologists still get it wrong sometimes.