Análisis del Medio Ambiente

 
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Calidad del auga - contaminación con metales pesados

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 controlled by these enzymes may be ...

 
Detalles

Num.Producto: P0990162

Altitude measurement on a trail

Principle

The altitude profile of a hiking trail or route to school can be measured during a school trip or as an exercise for the students. The altitude profile can also be used to demonstrate that the atmospheric pressure decreases when the altitude increases. As a result, the experiment ...

 
Detalles

Num.Producto: P1520262

Terrain mapping

Principle

The drawing of maps is one of the favourite tasks of the students during geography lessons and of a high didactic value. The altitude measuring function of the Cobra4 Sensor-Unit "Weather" is a user-friendly tool which provides altitude values so that contour lines can be added ...

 
Detalles

Num.Producto: P1520662

Acidity changes of a watercourse

Principle

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 stream changes even at a short ...

 
Detalles

Num.Producto: P1520862

Comparison of soil and air temperatures in the course of a day

Principle

How does the temperature of the air affect the temperature of the soil in the course of a day?

 
Detalles

Num.Producto: P1520962

The pH value of various soils

Principle

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  "Characteristic pH values ...

 
Detalles

Num.Producto: P1521062

Salinity of soils and plant substrates

Principle

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 salts for plant growth and to ...

 
Detalles

Num.Producto: P1521162

Raised bog and fen

Principle

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, which is due to their varied ...

 
Detalles

Num.Producto: P1521262

Salinity changes of a watercourse

Principle

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 measured after the stream has ...

 
Detalles

Num.Producto: P1521462

We visit a wastewater treatment plant

Principle

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 the key parameters: ...

 
Detalles

Num.Producto: P1521662

CONDUCTIVIDAD DE VARIAS MUESTRAS DE AGUA

 
Detalles

Num.Producto: P4100511

ORIGEN DE LA LLUVIA ÁCIDA

 
Detalles

Num.Producto: P4100711

El tamaño de las partículas del suelo

Principle

The sizes of the soil particles and the proportions of them are of great importance for the profitable use and fertility of the soil. A rough separation of soil particles according to their size, and an assessment of the proportions of them, can be made by suspending them in ...

 
Detalles

Num.Producto: P8012000

El contenido de calcita en el suelo

Principle

Investigation of the chalk content of garden soil, sand and further soil samples.The chalk (lime) content of the soil is important for plants in several respects. It affects the quality of the soil, e.g. its acidity, heat retention capacity, water balance and aeration. In ...

 
Detalles

Num.Producto: P8012100

X-ray expert unit

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PHYWE presenta la nueva unidad de rayos X: tecnología innovadora, máxima seguridad y comodidad.

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