Bekah's Inquiry~Yeast

1. Why does yeast make bread rise?

2.  http://www.exploratorium.edu/cooking/bread/activity-yeast.html www.greekbread.com

• I learned that yeast makes C02 for bread to rise.    
• Bread gets air bubbles in it when it bakes.  
• Yeast also has gas in it.

3.  Hypothesis:  I think that bread rises because of the sugar in the yeast.

4.  

5. The balloon got bigger and bigger and now it is standing up.

6. I learned that yeast makes CO2 for the bread to rise.  The bread gets air bubbles in it when it bakes because yeast has gas in it. That is why yeast makes bread rise.  My hypothesis was partly right.  The yeast eats the sugar, which makes the gas.