Thames & Kosmos Crystal Nightlight handleiding
Handleiding
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TIP!
If all of the alum did not dissolve,
take the jar out of the pot with the
pot holder and reheat the water on
the stove. Bring the pot back to the
experiment area and heat the liquid in
the jar once again.
4
Place the piece of cardboard in a
safe location and set the jar on
it. Cover it with a paper towel so
no dust falls in. Take a look at it
every now and then to see what’s
happening.
5
Let the jar sit overnight. Once
crystals that are about 5 mm in
size have developed, pour the rest
of the alum solution into a second
labeled jar. Don’t throw it away —
you will still need it!
If you still can’t find any little
crystals, let the jar sit a while
longer. If the crystals have grown
too large, just break them up with
the wooden spatula.
6
Fish the crystals out with the
spatula and let them dry on a
double layer of paper towels.
You will need them in the next
experiment. Screw the lid onto
the jar with the alum solution
and save it for Experiment 3.
4
5
6
GEEK
OUT!
WHAT’S
HAPPENING?
The hot water in the pot heats
the water in the jar. That rapidly
dissolves the alum crystal salt,
which turns invisible. The liquid in
the jar is called an alum solution.
As the solution cools,
transparent pointed shapes form
on the bottom and sides of the jar.
At first they are small, but they
grow larger with time. The first
crystals have formed!
7
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Productinformatie
| Merk | Thames & Kosmos |
| Model | Crystal Nightlight |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 7230 MB |
