Thames & Kosmos Make & Display Colorful Crystals Handleiding

Thames & Kosmos Niet gecategoriseerd Make & Display Colorful Crystals

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M
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Colorful
Crystals
Grow your own
colorful crystals!
E X P E R I M E N T M A N U A L
You will need
20 g alum packet, dye tablet,
measuring cup, spatula
old pot, trivet, potholders or oven
mitts, paper towels, old spoon
Here’s how
1. Fill your measuring cup
with distilled water to the 120 ml marker.
2. Please ask an adult for help with the
following steps, always use potholders, and
work very carefully so you do not burn
yourself. Fill the pot with about 3–4 cm (1.5
in) of tap water and bring it to a boil. Turn off
the stove and set the pot carefully on the
trivet at your workstation.
3. Place the measuring cup in the pot,
add the dye tablet, and stir with the spatula
until the tablet is mostly dissolved.
Caution: The dye is strong and can leave
stains on clothing and table surfaces.
Cut the corner off the alum packet with the
scissors. Do not use your teeth to open the
packet under any circumstances. The text
on the packet should remain readable. Pour
the entire contents into the measuring cup.
GROWING CRYSTALS
Your solution heats up
because of the heat from
the water in the pot, which
allows the small
alum granules to dissolve.
If the alum has formed
clumps in the packet, this
isn’t a quality issue. It
means that moisture (for
example, from the air) has
gotten in. The outcome
won’t be affected. The age
of the alum is also not
important.
?
T
Label th e me as ur in g cup lik
With a p en, w riteAlum Solu
on a s ma ll stri p of paper a
place a p iece of clear tape o v
to st ick it to the measuring
4. Stir with the spatula until all of the alum has dissolved.
5. If there are still visible granules after several minutes
of stirring, remove the measuring cup from the pot with
the oven mitt, reheat the water in the pot on the stove,
remove it from the stove, and place the measuring cup
back into the water. Then continue stirring.
6. Place the labeled measuring cup with the dyed alum
solution in a quiet, safe place and wait. After only a few
hours, you will be able to see the first tiny crystals
forming on the bottom of the measuring cup.


Product specificaties

Merk: Thames & Kosmos
Categorie: Niet gecategoriseerd
Model: Make & Display Colorful Crystals

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