Page 2 of 2
<< Back 1 2 >> Next page
Principle
Why are there only a few different kinds of plants in a deciduous forest? Except for having trees that are all approximately of the same height, hardly any other plants grow in a deciduous forest, except for young plants of the same type of trees. Th ...
The pH value (a measure of the concentration of hydrogen ions) in running waters depends on the geological conditions, the pollution load that is caused by agricultural production, and on plant activities. This experiment shows how the pH value of a ...
How does the temperature of the air affect the temperature of the soil in the course of a day?
Information concerning the quality of soils is of great importance for agricultural production. The students are familiarised with this subject via two experiments with pH measurements that show how much soils may differ from each other (experiment&n ...
Demonstration experiment using wireless data communication to send readings to a large-size display. Knowledge of soil characteristics is highly important for agriculture. To familiarise students with this topic, two sub-experiments use pH readings t ...
How suitable are certain soils and plant substrates for the nutrition of plants? This experiment is about measuring the conductivity, which in turn provides information as to which of the examined soils and plant substrates already contain nutrient sa ...
Demonstration experiment using wireless data communication to send readings to a large-size display. How suitable are certain soils and plant substrates in terms of plant nutrition? This experiment is concerned with the measurement of conductivity, which gives an in ...
Bogs and fens are habitats of plants that are specialised in soils with constant excess water. Apart from this specialisation, bogs and fens differ significantly from each other. Raised bogs and fens, for example, have different plant communities, whi ...
This experiment shows how the salt that is washed out of an abandoned potassium rock pile drastically increases the salinity of a watercourse, as well as how the salinity decreases only slightly further downstream, and how the salinity can still be me ...
A visit to a water treatment plant reveals some fascinating procedures and purification methods. We will not merely be concerned with interesting impressions, but instead we will increase our understanding for microbiological processes by measuring t ...
Various types of woodland exhibit different sorts of climate data. Temperature, humidity and lighting conditions do not only depend on meteorological factors but also on the nature of the vegetation. The density of the tree canopy determines how much light can penet ...
PHYWE presents the new x-ray unit: innovative technology, top safety, maximum comfort!
More
