Abiotic and biotic components of an ecosystem Student activity Play

Aquatic ecosystems Slideshow Play

Cold habitats Student activity Play

Cold habitats Whiteboard exercise Play

Detection of the presence of water Student activity Play

Differentiating between ecosystems Student activity Play

Differentiating between ecosystems Slideshow Play

Eutrophication of natural waters Slideshow Play

Eutrophication of water Student activity Play

Fertility of soils and water bodies Slideshow Play

Floods – nature's revenge? Student activity Play

How habitats vary Student activity Play

Lake Animation Play

Methods for flood prevention Slideshow Play

Natural water (1) Student activity Play

Natural waters Whiteboard presentation Play

Secondary succession in action Student activity Play

Simple methods for the detection of water Slideshow Play

Soil fertility; fertilization and types of fertilizers Student activity Play

Stages of succession in a small lake Whiteboard exercise Play

Stocked lake Student activity Play

Stocked lake Whiteboard exercise Play

The cooling of lake water Student activity Play

The cooling of lake water Whiteboard exercise Play

The surface of a lake Animation Play