It is like adding a fish to a bowl of water. is a living organism it does not break apart like salt in water so my guess educated would be no
physical change
Chemical science, because yeast is irreversible. Chemical Change: Irreversible Physical Change: Reversible
A chemical change
A chemical change
Physical
Flour eggs is physical and yeast to bread chemical
chemical
Fermenting cheese will become a chemical change not a physical change.
Yeast rising bread works because yeast (an organism) converts starch to carbon dioxide which makes bread grow. This can be seen as a chemical reaction (yeast converting starch to CO2 gas) or a physical reaction (the CO2 making the bread expand).
Yeast is a leaven. A chemical reaction between the yeast and water creates tiny gas bubbles, making dough expand.
A chemical change Because it takes plave in an oven and the yeast is rising without human help
You think probable to fermentation.