Clouds

What is Clouds?

Within Geography, which covers maps, landforms, weather, climate, population and settlements: understand how our planet and people connect, this topic explains Clouds. Geography explains how places, people and natural processes connect, so each topic here combines a clear definition with a visual model.

Check that you can explain Clouds in your own words and give one example from everyday life. If you can do that, you have understood the core idea.

Understanding Clouds helps you explain patterns on maps and in the news, and make reasoned decisions about places and environments.

Clouds in detail

Clouds form when air rises, cools to its dew point and water vapour condenses onto tiny particles into droplets or ice crystals. The main types are cirrus (high, wispy ice crystals), cumulus (puffy, fair weather), stratus (low, grey layers, drizzle) and cumulonimbus (towering, thunderstorm clouds).

Prefixes tell you more: alto- means medium level and nimbo- or nimbus means rain-bearing. Clouds affect climate by reflecting sunlight and trapping heat. Cloud type helps forecast weather, and cloud cover is measured in oktas. Fog is cloud at ground level.

How the interactive helps you understand Clouds

Click a card to flip it and reveal the answer, then move on to the next one.

Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of Clouds.

Real-life uses and examples

• Support an answer about Clouds with a named case study and specific evidence.
• Interpret a graph or map that shows Clouds and say what it suggests.
• Describe a real place where Clouds can be seen, using a map or photograph.

Common mistakes to avoid

• Writing general statements without a named place or example.
• Mixing up cause, effect and consequence when you explain Clouds.
• Learning the definition without testing it. Use the quiz and the interactive to check that you can apply the idea.