Thames & Kosmos Kids First: Crystals, Rocks & Minerals handleiding

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Thames & Kosmos

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Handleiding

So nothing goes wrong:

A word to parents

Advice for supervising adults

Dear Parents,

This experiment kit offers children an easy way to learn

about crystals and how they are formed. In addition,

children will learn simple methods for studying rocks and

minerals, and learn a lot about these building blocks of

our planet in the process.

It is natural to have questions about the safety of a kit that

contains chemicals. The experimental equipment in this kit

meets U.S. and European safety standards, which specify

the safety requirements for chemistry experiment kits.

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 information about

dangerous substances (chemicals) and their

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

10 years. For use under adult supervision. Keep this

chemical toy set out of reach of children under 10

years old.

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, citric acid, the other chemicals

and chemical 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 packets) should be used up (completely) during

the course of one experiment, i.e. after opening the

package.

H. The working area should be cleaned immediately after

carrying out the activity.

Emphasize to your child the importance of following all

instructions and warnings, and the importance of carrying

out only those experiments that are described in this

manual. Inform your child, but do not frighten him or her

— there’s no need for that.

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 when heating water on the kitchen stove!

While experimenting, please be careful not to let the

crystal salts and chemicals come into contact with the

skin, eyes, or mouth. It is also important not to let the

crystal salts, their solutions, or especially the finished

crystals get into the hands of young children. They could

mistake them for candies and put them into their mouth.

The dye powder will color things very intensely and may

cause stains that can’t be washed out of clothing. Keep all

tablecloths, curtains, and carpets away from the

experiment area. The child should wear old clothes when

working.

The work area should not be in the kitchen, as chemicals

should be kept strictly separate from foods and kitchen

equipment. A cool basement room would be ideal. Do not

use any containers or tools in the kitchen after you have

used them for growing crystals.

Always get any required equipment and chemicals ready

before beginning an experiment. The safety goggles are

especially important!

We hope you and your child have a lot of fun growing

crystals!

Kristalle züchten

TIP !

Additionally required items from your household

or from the supermarket or drug store are

highlighted in italic script in the individual

experiments. Before your child begins the

experiments, he or she should carefully read

through everything that will be required and make

sure to have all the materials ready.

› › › IMPORTANT INFORMATION

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