Thames & Kosmos Hot Ice Crystals handleiding

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Thames & Kosmos

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Handleiding

3. Making sparkling

crystal animals

You will need:

1 packet crystal salt (sodium

acetate), crystallized solution from

Experiment 2, wooden spatula, seal

and polar bear mold, petri dish, 2

clean jelly jars with lids, distilled

water, pot, trivet, and pot-holder,

scissors, paper label, pencil and tape,

paper towels, piece of cardboard

(about 150 x 200 mm), aluminum foil

Here’s how:

Pour the crystallized solution

from the last experiment back

into a clean jelly jar and clean the

measuring cup.

Add one more packet of crystal

salt to the jelly jar along with

4 mL of water. Save a few seed

crystals in the closed petri dish.

Heat the solution in a water

bath as described in Experiment

1, and stir until the solution is

completely clear and you can no

longer see any crystal granules.

Carefully pour the warm

solution into the clean, labeled

measuring cup. Let it

sit overnight in an

undisturbed location,

placing the jelly jar lid on

top to protect it.

Crystals

from last

experiment

Water

Crystal salt

packet

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