In murky waters - bioindication

How do we actually know how healthy a body of water is? Researchers use biological diversity as a criterion for water quality, among other things. Based on the analysis of different animals that live, for example, in a stream or pond, conclusions can be drawn about the health of the water. If a body of water is particularly healthy, it is also sustainable and can be assessed as worthy of protection.

A new pond was created in the new “Technorama Draussen” park and the Riedbach was revitalized. The aim of the workshop is to examine the health of these two bodies of water. For this purpose, the participants first independently collect random samples from the waters, which are identified and counted in the laboratory using an identification key. These samples are then documented using a table and the biodiversity and health of the water are calculated. The work of various groups makes the biodiversity analysis of the Technorama waters more and more precise.

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Bioindikation
thema-Links

Animals, plants, habitats

Biology

Characteristics of life

Microscopy

Exhibit-Links
11624 Detail

Hot heap

Life generates Heat. The living organisms contained in a compost heap, such as bacteria and fungi, break down dead organic material and thereby gain energy…

11788 Haupt

Teeming world in water

Struggle for Survival on the Small Scale. A sample from the stream in Technorama Park contains different organisms. Even with the naked eye you can see it…

Experiment-Links
Tiny Hot Pile Main

Tiny Hot Pile

Microbial decomposers heat things up. No yard? No problem. Make a mini indoor compost pile, and look for evidence of microbial metabolism.

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Gewässergetier Foto

Aquatic animals - organisms in the stream and pond

When talking about animals in streams and ponds, children usually think of fish and frogs. The fact that there are other animals in these habitats that are…

DSF4159

Asseln unter der Lupe - inklusiv

Asseln sind bestimmt keine besonders beliebten Haustiere – umso mehr eignen sie sich aber als Einstieg in die Tierkunde. Was machen eigentlich Zoologen, deren…

Cake Lab

CakeLab – function of baking ingredients

“Pat-a-cake pat-a-cake, baker’s man. Bake me a cake as fast as you can…” This popular nursery rhyme might be one way to bake a cake. But there are also other…

Schoggi2

Chocolate atelier – The secret of Swiss Chocolate

Cocoa beans were already consumed at the time of the Aztecs and the Mayas, and chocolate has remained a bestseller for centuries. And it is equally clear that…

IMG 8510

Cold, colder, shock freezing – ice cream in three minutes

Need an ice cream? We only use natural ingredients and freeze them with liquid nitrogen (minus 196 °C!) in no time to a fruity delicacy. Who can say no to a…

Spurensicherung expo

CSI Technorama – forensics

Regardless of whether it is a burglary, an accident or a felony, crime scene investigations always begin with securing the evidence. Are there fingerprints?…

Nano WS

Don't be so superficial! – Understand structures

How do plant leaves behave towards water? What does that have to do with surfaces and structures? And what can we learn about ourselves and our everyday life…

Genetischer Fingerabdruck

Genetic fingerprint - CSI

If the genetic makeup is roughly 99% the same among all humans, how is it possible to use DNA as a basis for convicting criminals beyond doubt? Is there a…

REM

Individual school projects at the REM

Matura work or class projects Whether pollen for checking honey quality or as templates for design objects, detailed illustrations of insects and plant…

Workshop Kalt kälter

Kalt, kälter, schockfrosten - inklusiv

Ein Glace gefällig? Wir verwenden nur natürliche Zutaten und frosten diese mit flüssigem Stickstoff (minus 196 °C!) in Nullkommanix zu einer fruchtigen…

Ohr

Listen up! - Directional listening

The cat lies on the couch, eyes closed. Only the ears move slightly and turn in the direction from which they perceive a sound. Why can some creatures move…

Mikroskopieren

Making it big – microscopy

Astronomers use the telescope to study the vast universe, and biologists use the microscope to examine microorganisms. But under the microscope we can also see…

DNA rechts

Pleased to meet me – DNA

Have you ever wondered what it is that makes you, you, with those ears and that eye colour? Have you ever looked at your DNA? What exactly is it and where do…

Pumpen Pipelines

Pumps and pipelines – water transport in trees

Just like other plants, trees also need water to survive. But how do trees “drink”? How do they absorb water? And how do they transport it from their roots to…

PCR2

Sweet, sour, salty, bitter, umami – PCR

Do we all really taste the same thing when we bite into a hot dog? And if not, what role do our genes play? PCR stands for polymerase chain reaction. This is a…

Asseln

The beauty in the beast – scientific methods

It is safe to say that isopoda (woodlice) are not the most popular pets – but they are all the more useful for zoology. What do zoologists actually do when…

Auge

What do you see? – Function of the eye

We make eyes at someone, but keep an eye on others. We can turn a blind eye and sometimes get away with just a black eye. But the myriad of idiomatic…

Fisch

Where am I? – Bioelectric orientation

Migratory birds find their way south by means of magnetoreception, bats create an “aural picture” of their surroundings by means of echolocation and certain…