Technical specifications

Size of kit: 540 x 450 x 150 mm

• 1 - Drilled deep into the earth

  experiment "Drilled deep into the earth"

  With this experiment, children learn how and where groundwater forms.

  
  
• 2 - The Great Soil Type Test

  experiment "The Great Soil Type Test"

  In the following four experiments, the children recognize that only the clay/loam holds back the water, while the other types of soil let it through and store it. The different rate at which the water seeps away depending on the type of soil is an additional observation.

  
  
• 3 - Groundwater is clean if not...

  experiment "Groundwater is clean if not..."

  The children realize that the rainwater ends up being clean, although it should be "dirty" because of the soil it flows through. However, they also recognize that this filtering process does not work with substances that humans bring in, e.g. B. salt, oil, detergent and paint. Students can later conclude that groundwater needs to be protected from such contaminants.

  
  
• 4 - A small water cycle

  experiment "A small water cycle"

  In connection with the formation of groundwater, the formation of rain is also of interest, because this is the only way to close the cycle. All attempts to do this in elementary school have the disadvantage that they only partially represent the processes in a model-like manner and require patience.

  
  
• 5 - We build a well

  experiment "We build a well"

  With this experiment, which requires a little handicraft work, children can get an idea of ​​how a fountain is built and how it works in principle.

  
  
• 6 - Who creates the water pressure?

  experiment "Who creates the water pressure?"

  The children get an idea of ​​how the pressure has to be generated with which the drinking water itself reaches the taps in high-rise buildings. One option is to use pumps that have to run constantly. The second option is to first pump the water into a container that is higher than the taps.

  
  
• 7 - We try to explain wastewater with the "rake"

  experiment "We try to explain wastewater with the "rake""

  Children who have engaged in this experiment should understand why the materials mentioned (and others) must be kept out of the wastewater. Even with our “clean” materials, it is not a pleasant task to have to separate them from the water.

  
  
• 8 - We try to clarify wastewater in a "settling tank"

  experiment "We try to clarify wastewater in a "settling tank""

  We use edible oil because in reality, like all other edible fat residues, it is removed during washing, but is not eliminated as such and therefore has a share in the sewage treatment plant work. The same goes for the toilet paper. As a result, disposal after the experiment is also easy: it can be done with the waste water.

  
  

• 1 × Plastic case ca.540x450x150 mm
• 1 × Storing diagram,int.vers.
• 1 × Foam insert for 31802
• 1 × Lidfoam grey,515x355x10mm
• 15 × Plastic dish 95x62x20 mm
• 1 × Connecting tube, 650x14 mmØ
• 7 × Connecting tubing, 300x14 mmØ
• 2 × Metal spoon, 220 mm
• 15 × Metal spoon, 138 mm
• 1 × Plastic box 140/50/35 mm
• 15 × Beaker, plastic 125 ml, graduated
• 15 × Beaker, plastic 250 ml, graduated
• 15 × Coarse sieve
• 15 × Copper wire gauze
• 15 × Filter tube, transparent
• 15 × Push-on connector, rod
• 15 × Plastic pot (old No.:90413)
• 15 ×
• 1 × Tray 510x360x20 mm
• 1 × Colouring agent, blue