Activity 1.4 Mystery Bags Quiz

Use your BioLog to answer these questions.

1. What is a gas ? (Interpretations #4)  
    
    
2. Record your data from activity 1.4 Mystery Bags.

   Treatment	Yeast (g)	Sugar (g)	Flour (g)	Water (ml)
   1
   2
   3
   4
   5

3. Describe your experimental design.

   For treatments ________ through ________ in the table above:

   • the manipulated variable is ________________________________
   • the responding variable is ________________________________
   • one controlled variable was ________________________________
   • another controlled variable was ________________________________