All cells are filled with a jelly-likesubstance known as cytoplasm. Usually, cytoplasm is colorless and see-through because it is composed ofwater at a level up to eighty percent. ... Although cytoplasm is a thick and jelly-like substance, it becomes liquid if you stir it or shake it
Hard-boiled eggs are cooked so that the egg white and egg yolk both solidify, while for a soft-boiled egg the yolk, and sometimes the white, remain at least partially liquid.