Simple Science - Digest Experiences # 41

In today's digest experiments from the 4th book "Simple Science". They will be useful for versatile parents, beloved grandparents, cool uncles and aunts. Have a good time with children !

Chemical ink eraser

It is also possible to erase ink from paper, only the paper itself is slightly dampened and, after drying, traces of moisture are still visible. But the ink will disappear.
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Sinking and Sinking Orange

It's all about the porous structure of the peel.

Gelatin Xerox

In my childhood, my father showed me how to use an inscription using a boiled egg. But, with gelatin cool and sure.

4th book "Simple Science"

The book was published just over a month ago and is available in our online store .