Page 1 of 2
<< Back 1 2 Next page >>
Principle
Heavy-metal ions may be carried into surface or ground water from mining fields or via the waste water of galvanicor similar production sites. They block the effect of enzymes so that the processes in the metabolism of the organisms that are controlle ...
Demonstration experiment using wireless data transmission to a large digital to display. Heavy metal ions can seep into water courses, for example from galvanising plants or other similar industries. They have the effect of suppressing the action of enzyme ...
These measurements help to quickly and simply introduce the term "heat capacity". The students learn on which characteristics temperature changes of surfaces depend. As practical example, reference can always be made here to the hot sand ...
Illustration of the heat loss for different relationships between volume and body surface area, using a model consisting of different sized round bottom flasks that are filled with water.
This experiment shows how much the quality of drinking water of various locations in the same region can vary. The comparison of tap water with bottled mineral water and distilled water leads to surprising results.
The compact Cobra4 Weather multisensor makes for fitting out your own weatherstation with little means. It allows the relations between air pressure, humidity and temperature, and also brightness, to be made understandable. Fluctuations over a period ...
The compact Cobra4 "Weather" multisensor can be employed as a simple means to setup a weather station, which can then be used to explain the relationship between the air pressure, humidity, temperature, and the light intensity. The measurement combina ...
Dew or frost can be formed on the inside of windows, although one has the feeling that the air in the room is quite dry. A cellar cannot be dehumidified on warm days in summer by simply opening the cellar window. This experiment shows why.
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 ...
PHYWE presents the new x-ray unit: innovative technology, top safety, maximum comfort!
More
