A discussion about the causes of acid rain and attempts to reduce its impact.
Walia ibex live on sheer cliffs in Ethiopia and have adapted to survive on steep cliffs.
An introduction to the adaptations of some marine and terrestrial animals and plants.
Stefan Gates finds out the land needed to produce a kilo of snail meat.
The greenhouse effect and the importance of balancing carbon dioxide in the atmosphere.
Specialised cells in plants are organised into tissues, organs and systems.
Simple food webs, food chains, population changes and their effects on food webs.
An investigation into the use of fossil fuels and their impact on the environment.
How farmers manipulate growing conditions to improve quality and yield in crops.
The Exxon Valdez oil spill demonstrates the effects of pollution on the environment.