Thames & Kosmos Glowing Chemistry handleiding
Handleiding
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EXPERIMENT 10
Invisible Light
25
Sunscreen
The sun’s UV light can give skin a nice tan, but
it is not without its dangers. For example, you
can get sunburned if you expose your skin to
the sun. You can protect yourself by rubbing
in a little sunscreen. Do you think it might also
shield the beads from UV light?
YOU WILL NEED
› UV lamp
› 2 Beads
› Petri dish
› Sunscreen lotion (sun protection factor as high
as possible, maybe 30-50)
HERE’S HOW
1. Rub a thin coating of sunscreen onto one of
the beads.
2. Place both beads in the open Petri dish. Set
the dish in the sun and watch to see which
bead changes color faster.
3. When you are done, wash the lotion off the
bead with some warm soapy water.
WHAT’S HAPPENING
Sunscreen contains substances that are
very effective at filtering out UV rays,
and thus protecting the skin. The beads
show how well it works.
TIP!
If the sun isn’t shining,
you can still perform
the experiment
using the UV lamp.
2
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Glowing Chemistry |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 26917 MB |
