Thames & Kosmos Glowing Chemistry handleiding
Handleiding
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EXPERIMENT 8
Invisible Light
23
Beads under UV light
You already saw in the very first experiment
how the white beads turn blue in the sunlight.
Will they also turn color under the light of a
lamp? And what could possibly make them do
that?
YOU WILL NEED
› UV lamp
› Beads
› Petri dish
HERE’S HOW
1. Place the beads in the lid of the Petri dish, set
the lid in a room with low light, and wait a
few minutes. The beads will stay white.
2. Shine the UV lamp on them from a short
distance away.
WHAT’S HAPPENING
Within a few seconds, the beads will
turn blue. The experiment demonstrates
that the beads actually only respond to
UV light. Normally, the dye contained
in them remains colorless. It only
takes on a blue color when it is
illuminated with UV light. Ordinary
artificial light leaves it unaffected.
Once the UV lamp is turned off, the
beads lose their color again in a few
minutes.
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Glowing Chemistry |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 26917 MB |
