1. Experiment: Cold water and warm water

Your test person should now put one hand in bowl A and the other hand in bowl C.

After two minutes, ask the person to put both hands in bowl B.

Afterwards, ask your test person: "What strikes you?"

Of course, you can do the experiment by yourself. However, it works better with an uninformed person.

What strikes your test person or yourself?

The temperature of the water in bowl B does feel different for each hand.

The temperature of the water in bowl B does feel the same for both hands.