Simple Science - digest experiments # 41

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In today's digest experiences from 4-й Book «Simple Science". They are useful versatile parents loved grandparents, uncles and aunts cool. I have a nice spend time with children !

Chemical eraser ink h4>

Wash the ink from the paper can also be just a little soak the paper itself and, after drying, still show traces of moisture. However, the ink will disappear.

Sinking and netonuschy orange h4>

All the matter in the porous structure of the rind.

Xerox gelatin h4>

As a child, my father was showing how to use the boiled eggs can be transferred to an ink inscription. But with gelatin, and certainly more fun.

4th book "Simple Science» h4>


The book came out just over a month ago and is available in our интернет-магазине.

Source: geektimes.ru/company/gtv/blog/249676/

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