Thames & Kosmos Crystal Creation handleiding

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Thames & Kosmos

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Handleiding

Safety

Before each experiment, always read through

the instructions. Only use materials that are

mentioned in the instruction manual. Never

bring the substances you are handling into

contact with your body, particularly with eyes

or mouth.

Always wear your safety glasses when

handling chemicals. Always be particularly

careful with hot burners, and remember to turn

them off after use!

When handling plaster, follow these rules:

› Do not place the materials in the mouth.

› Do not inhale dust or powder.

› Do not apply to the body.

››› CAUTION! The following applies to all chemicals: Keep them locked up. Do not let them get

into the hands of children.

This primarily applies to young children, but also to older children who — unlike the

experimenter — have not been appropriately instructed by adults.

Also follow this safety guideline: IF A CHEMICAL IS SWALLOWED: Immediately seek medical

advice and/or attention and be ready to provide the chemical packaging label.

If any chemicals inadvertently get onto the skin, rinse off immediately under running water.

Always be careful not to inhale chemical dust or powder when experimenting.

Your experiment area…

… should be set up in a quiet room. If there are

any small children or pets in the house, you

should be able to close off the room so they can’t

get to the chemicals or knock over your crystal-

growing jars, which you will have to leave

standing for several days. Also, the temperature

in the room shouldn’t vary too much (no full sun

through the window, for example), since the

solubility of the substances is temperature-

dependent and unwanted heating can cause

already-formed crystals to dissolve again.

The kitchen is not appropriate for your

experiments, since there is too great a risk that

chemicals will get into foods or that someone

will inadvertently swallow these substances by

mistaking them for food.

› › › TIPS

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