Give everyone
The letter will become invisible as soon as ink dries.
And to read the message, it is necessary to take it at fire.
The lemon, milk or a kokakol will also be suitable for this occupation.
Competition to sponges Age: let Number of players: Two children participate in this game.
Give everyone a porolonovy sponge they have to be identical and a bowl.
Pour an identical amount of water in bowls and put them from two parties from a sink or a big pan track that all this was on a surface which water cannot damage.
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