(Melting ice.)
taking items out of the refrigerator removing raisins from kugel removing oil from yogurt removing juice from coleslaw
understanding the concept of מטה של פרקים (a bed used to travel that had to be put together and taken apart);
ממצוא חפציך (Mimtzo Cheftzecha): What Type of Instances Would Make These Actions Allowed to Be Done on Shabbos?;