Opening and closing cereal boxes, cookie packages, books, etc. with letters, numbers, pictures printed on them.
Various Interesting Questions on Suction Cups, and Putting Air Back into Items Which Became Deflated;
Some more important concepts about "SHEMA YISCHOK" (one might come to squeeze out a garment).
(Melting ice.) putting ice cubes into hot drinks; pouring hot liquids onto ice cubes;