Leavening agents

Yeast is a leavening agent that is ...

• alive

• dead

• powdery chemical

Tags

NGSS.MS-LS1-1

Baking soda is a leavening agent that is ...

• alive

• dead

• a chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Baking powder is a leavening agent that is ...

• alive

• dead

• a chemical powder

Tags

NGSS.MS-PS1-5

Leavening agents react with other ingredients in a recipe that creates what gas?

• oxygen

• nitrogen

• carbon dioxide

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Leavening agents are "bases" that react with "acid" type ingredients to give breads, cookies, etc, "lift" when they bake.

• true

• false

What do you have to mix with yeast to make it come alive and give baked goods lift?

• warm water

• cold water

• boiling water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What ingredient do you add to bread dough to "feed" the yeast?

• sugar

• milk

• salt

Tags

NGSS.HS-LS2-3

Why don't you use yeast to make a birthday cake?

• It takes longer for yeast to rise and lift cake batter

• It takes yeast to little time to lift cake batter

• Yeast doesn't taste good in cakes

Why is yeast used to leaven bread dough and baking soda and powder used for cookies and cakes?

• Cookies and cakes don't bake long enough for yeast to work

• Cookie and cake batter are too dense, bread dough is very thin

• Yeast is used in bread dough because it very dense, baking soda and powder is used in cookies & cakes because they are less dense

Yeast uses a biological reaction and baking soda and powder uses a chemical reaction to make carbon dioxide.

• true

• false

Tags

NGSS.MS-PS1-2