As the yeast ferments the sugar, it produces carbon dioxide gas which fills the balloon. This process will increase the mass of the balloon due to the additional weight of the gas molecules inside.
To conduct a yeast balloon experiment, you will need a balloon, a water bottle, warm water, sugar, active dry yeast, and a funnel. First, mix the warm water with sugar in the bottle, add yeast using the funnel, and stretch the balloon over the top of the bottle. As the yeast consumes the sugar and produces carbon dioxide, the balloon will inflate.
The sugar is needed as food for the yeast. The yeast gives off carbon dioxide as it digests the sugar. The carbon dioxide could be used to inflate the balloon. Without the sugar, the yeast remains dormant and does not give off carbon dioxide.
The yeast would consume the sugar and produce carbon dioxide gas as a byproduct. The gas would inflate the balloon, demonstrating the process of fermentation in action. After a week, you would likely see a visibly inflated balloon, indicating that the yeast has been actively fermenting.
A change could be altering the amount of sugar or yeast used in the experiment to observe its effect on gas production. Another change could be varying the temperature at which the experiment is conducted to see how it impacts the rate of fermentation and gas production. Alternatively, changing the type of sugar used, such as switching from glucose to sucrose, can also yield different results in terms of gas production.
The manipulated variable in the experiment of blowing up a balloon with yeast could be the amount of yeast used. By varying the quantity of yeast, you can observe how it affects the rate of gas production and therefore the balloon inflation.
To conduct a yeast balloon experiment, you will need a balloon, a water bottle, warm water, sugar, active dry yeast, and a funnel. First, mix the warm water with sugar in the bottle, add yeast using the funnel, and stretch the balloon over the top of the bottle. As the yeast consumes the sugar and produces carbon dioxide, the balloon will inflate.
The sugar is needed as food for the yeast. The yeast gives off carbon dioxide as it digests the sugar. The carbon dioxide could be used to inflate the balloon. Without the sugar, the yeast remains dormant and does not give off carbon dioxide.
Yeast eats the sugar giving off CO2 which is a gas that will inflate the balloon. Added: But since carbon dioxide is heavier than air this balloon gas will never reach the 'top'
The yeast would consume the sugar and produce carbon dioxide gas as a byproduct. The gas would inflate the balloon, demonstrating the process of fermentation in action. After a week, you would likely see a visibly inflated balloon, indicating that the yeast has been actively fermenting.
Live yeast can be used to inflate a balloon if you give the yeast something to ferment (such as sugar). They then produce carbon dioxide as a waste product that could inflate a balloon. You should not expect it to be buoyant, however, for CO2 is heavy as gases go (considerably heavier than air, for instance). The yeast cannot use salt for much of anything, however.
Mixing yeast and sugar is a physical change, as the yeast and sugar molecules remain the same even though they are combined. A chemical change would occur if the yeast and sugar reacted together to produce a different substance, such as carbon dioxide during fermentation.
Sugar is a necessary food source for yeast to grow and ferment. When yeast consumes sugar, it produces carbon dioxide and alcohol, which are responsible for fermentation in bread-making and alcohol production.
Among other varieties, the basic ingredients for bread are Flour, Water, Sugar, and Yeast.
Yeast Grows much better in sugar water. They are micro organisms that need the sucrose in the sugar to activate and grow, without the sugar very little would happen. If you used salt water it would most likely kill the yeast.
If there is a little moisture too, then the yeast cells will multiply and turn the sugar into alcohol and carbon dioxide gas. The carbon dioxide gas will inflate the balloon.
Yeast consumes sugar and as a byproduct you get alcohol. In simple terms, yeast eats sugar and pees out alcohol.
A change could be altering the amount of sugar or yeast used in the experiment to observe its effect on gas production. Another change could be varying the temperature at which the experiment is conducted to see how it impacts the rate of fermentation and gas production. Alternatively, changing the type of sugar used, such as switching from glucose to sucrose, can also yield different results in terms of gas production.