chemical
A chemical change
Its a chemical change because its changing what it is (from dough to bread)
A chemical change Because it takes plave in an oven and the yeast is rising without human help
It IS chemical, but it's not a heat reaction. It's respiration. Yeast is a living organism, which consumes sugar and excretes CO2 and alcohol. - - - - - chemical, because its reacting with heat & that always means chemical. it just includes a physical change..
Physical. This is so because it is not a change in energy, but a change in density, or mass.
chemical change. something that has to do with the heat.
One example is baking bread. You put it in as a soft dough and take it out as a hard, edible, yummy food: bread!
Yeast is used to make bread by fermenting the dough.
Students will be able to distinguish between physical and chemical changes. ...Prepare the bread dough in the mixing bowl as directed on the box. ...kinds of liquids, or bubbling the gas through the solution and allowing it to dissolve). ...The change thatoccurs when an Alka-Seltzer tablet is added to wateris chemical.
it is a chemical reaction because u cant change it back into dough or flower, eggs, oil etc ingredents that is in it
chemical
It reacts with the sugars to make it rise.