Today we continued our investigation of yeast by changing the variables in he experiment. 

Each lab group was given a choice of either changing the amount of yeast, the amount of sugar, the temperature of the water, or the size of the bottle. 

Most of the time the winner appeared to be either hotter water or a smaller bottle. 

Essential Question: How can we test if something is alive? 

Today we investigated whether yeast is alive by combining yeast, sugar, and warm water inside a water bottle and placing a balloon on top. Scholars then waited as their balloons began to expand!