Thames & Kosmos Global Water Quality handleiding
Handleiding
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EXPERIMENT 4 Why rain isn’t salty
If rain is created from evaporated seawater, then why isn‘t
it salty?
You will need:
small measuring cup washed clean,
as well as: plastic bowl, plastic wrap, tape, stone, paper towels,
table salt, red fruit juice (not included)
1
Fill the plastic bowl with
some water and a few
teaspoons of salt. Add a little
red fruit juice. Wad up a few
paper towels and line the
bottom of the bowl with them.
They will become completely
saturated with liquid.
2
Set the clean, empty
measuring cup right in the
middle of the bowl, positioned
between the wet wads of
paper towel so it can‘t fall over.
3
Stretch plastic wrap over the
bowl and secure it to the outside
with tape.
Place a large stone or other
weight right in the center of the
plastic wrap above the cup, so the
plastic wrap is pressed down a
little right above the cup.
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Global Water Quality Manual 2013.indd 10 2/7/13 10:22 AM
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Global Water Quality |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 3490 MB |
