Thames & Kosmos Glowing Chemistry handleiding
Handleiding
Je bekijkt pagina 28 van 52
EXPERIMENT 11
1
2
WHAT’S HAPPENING
A thin piece of clothing, such as a
t-shirt, will only filter out a portion of
the UV light. If the fabric is wet, it
filters out even less. So it won’t do you
much good if you try to use a wet shirt
to keep from getting sunburned while
swimming.
26
Through clothing too
It’s especially easy to get sunburned when
swimming at the beach. Do you think a shirt
might help protect you against the sun’s rays?
YOU WILL NEED
› Petri dish
› 2 Beads
› Handkerchief or shirt
› Watch
HERE’S HOW
1. Place one bead in the Petri dish lid and one in
the bottom part of the dish.
2. Now set one of the beads in the full sun, and
the other under a dry shirt or handkerchief.
Compare how quickly they turn color. Record
the time.
3. Get the shirt/handkerchief nice and wet and
repeat the experiment. How big of a time
difference is there now?
Note down your findings in this table:
Bead... Time (in seconds)
...in full sun
...under dry shirt/cloth
...under wet shirt/cloth
Bekijk gratis de handleiding van Thames & Kosmos Glowing Chemistry, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Thames & Kosmos |
| Model | Glowing Chemistry |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 26917 MB |
