well basically if you dissolve any liquid in yeast and warm water gas will typically rise from the mixture and supposedly fill a balloon with gas...keep in mind I'm only in the 5th grade...
Because the gases filling the balloon are lighter than the surrounding air.
it can rise because of the helium and the gases help make it rise to the sky
There are many chemicals found in a hot air balloon to make it rise. The main elements/chemicals are Helium and Hydrogen.
It produces gases and causes the bread to rise.
1) air2) steam3)carbon dioxide4)yeast
To make a balloon rise in the air, one way is to fill it with a lighter-than-air gas, such as helium or hydrogen. The gas inside the balloon is less dense than the surrounding air, enabling it to float and rise. The amount of gas and the size of the balloon will determine how high it can rise.
A balloon filled with argon will sink because argon is denser than air. The density of a gas affects its buoyancy in the surrounding air; denser gases will sink while lighter gases will rise.
What is in yeast to cause it to rise
To show that yeast was responsible for making the dough rise, you can conduct an experiment where you prepare two batches of dough- one with yeast and one without. Allow both doughs to rise, and observe that the dough with yeast rises significantly more due to the yeast's fermentation process producing gases that make the dough expand.
Absolutely not. However, you may replace the yeast if you modify the way you prepare the recipe. Rapid rise yeast does not require as much rising and kneading as does traditional yeast. In fact, rapid rise yeast eliminates the need for the "first rise" that traditional yeast calls for. Therefore, if you replace rapid rise yeast with traditional yeast, you will have to let your dough rise, punch it down, and then form your bread (or whatever) and let it rise again before baking. Also, the proportions of yeast are different. Multiply the amount of rapid rise yeast by 1.25 for the equivalent of traditional yeast.
Yeast makes the crust rise.
Yeast makes bread rise.