Unit 2: Weather Dynamics

15 images of various instruments such as rain gauges, wind vanes and weather satellites used to inform us about the weather

What is the nitrogen cycle? How do human activities such as using fertilizer affect the nitrogen cycle? How can this cause greenhouse gases?

5 images of cirrus clouds that are wispy or feather-like clouds at high level, made of ice crystals and may indicate an approaching storm

11 images that illustrate some daily weather conditions such as cold, hot and windy

One-third of all food produced is wasted. Learn about the environmental consequences of food waste, and what you can do about it.

1 diagram illustrating the water cycle

5 images of scenes showing various sunrises

5 images of scenes showing various sunsets

How will arctic ice melt from climate change affect exploration, scientific research and geopolitics?

The water in the oceans has travelled vast distances. It has even time spent deep below the surface of the Earth, trapped inside the mineral ringwoodite.

Did you know that too much carbon dioxide in the classroom can affect your body, and even your grades?

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

When a species ends up outside of its natural zone, the consequences on other species, ecosystems and human industries can be severe. Climate change and human activities can introduce species into new zones.

Learn how to make a pH indicator and test water samples.

Green walls use plant processes to improve air quality in buildings.