Thames & Kosmos Hot Ice Crystals handleiding

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Thames & Kosmos

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Handleiding

6. Glittery crystal

castles

For this experiment, we recommend

you use all of the crystal salt included

in the kit, which includes reusing

previously used crystal salts.

You will need:

Up to 7 packets of crystal salt (sodium

acetate), wooden spatula, castle base,

blue dye (optional), clean jelly jar

with lid, distilled water, pot, trivet,

and pot-holder, scissors, paper label,

pencil and tape

Here’s how:

Measure 4 mL of water per packet

of crystal salt. You can color the

water with some of the dye if

you want. Then pour the colored

water into an empty jelly jar.

Add all of the crystal salt. Save

a few seed crystals on the castle

base for later.

Make a crystal salt solution in

a water bath as described in

Experiment 1.

Pour the solution into a clean,

labeled measuring cup and

let the cup sit overnight in an

undisturbed location with a jelly

jar lid on top.

Carefully pour the cooled solution

over the seed crystals on the

castle base. Can you grow a

crystal castle with a tower, gate,

or turret?

GEEK

OUT!

WHAT’S

HAPPENING?

As in the previous experiments,

when you slowly pour the liquid

over the seed crystals, the solution

quickly crystallizes out again. Soon

you will have your own crystal

castle.

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