Material de Laboratorio

 
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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

Avogadro's law

 
Detalles

Num.Producto: P1134900

Bromación nuclear de tolueno

 
Detalles

Num.Producto: P1151700

Reactions with benzaldehyde (phenylmethanal)

 
Detalles

Num.Producto: P1153200

Una fuente de cloruro de hidrógeno

Principio

Algunos gases como el cloruro de hidrógeno se disuelven muy bien en agua. De esta manera, 1 litro de agua a 20 °C disuelve aproximadamente 443 litros de cloruro de hidrógeno. En un matraz tapado se forma rápidamente una presión negativa por el ...

 
Detalles

Num.Producto: P1310100

Ley de Ohm

Principle

The connection between electrical voltage and the resulting current is measured with various test resistors.The quotient of voltage and current is a constant value that characterises the component.

 
Detalles

Num.Producto: P1330361

Chloroplasts

 
Detalles

Num.Producto: P1346800

We examine our drinking water

Principle

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.

 
Detalles

Num.Producto: P1520062

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

Weather observation with the Cobra4 Mobile-Link

Principle

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 combination of a Cobra4 Mobile-Link ...

 
Detalles

Num.Producto: P1520462

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

Changes of the light conditions in a deciduous forest

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. This experiment shows how the ...

 
Detalles

Num.Producto: P1520762

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

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