Thames & Kosmos Grow a Crystal handleiding

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Thames & Kosmos

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Handleiding

Dear Parents,

The experimental equipment in this kit meets

U.S. and European safety standards, which

specify the safety requirements for crystal

growing sets. These standards impose

obligations on the manufacturer, such as

forbidding the use of any particularly

dangerous substances. The standards also

stipulate that adults should assist their

children with advice and assistance in their

new hobby.

A. Read and follow these instructions, the

safety rules and the first aid information,

and keep them for reference. Please

observe the notes on handling the crystal

salt (potassium alum) and its

environmentally sound disposal.

B. The incorrect use of chemicals can cause

injury and damage to health. Only carry

out those experiments which are listed in

the instructions.

C. This experimental set is for use only by

children over 8 years.

D. Because children’s abilities vary so much,

even within age groups, supervising adults

should exercise discretion as to which

experiments are suitable and safe for them.

The instructions should enable supervisors

to assess any experiment to establish its

suitability for a particular child.

E. The supervising adult should discuss the

warnings, safety information, and the

possible hazards with the child or children

before commencing the experiments.

Particular attention should be paid to the

safe handling of hot water, alum, and the

alum solutions.

F. The area surrounding the experiment

should be kept clear of any obstructions

and away from the storage of food. It

should be well lit and ventilated and close

to a water supply. A solid table with a heat

resistant top should be provided.

G. Substances in non-reclosable packaging

(potassium alum packet) should be used up

(completely) during the course of one

experiment, i.e. after opening the package.

Hot water is used in the production of crystal

salt solution. You should devote special care to

handling it safely and assist your child when

help is needed. Make sure there is no fire risk

Advice for Supervising Adults

Bekijk gratis de handleiding van Thames & Kosmos Grow a Crystal, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.