1. S&S 3.1 Bubble Blowing Fungi
Designing your own Investigation
GLEs 1.2.1; 1.2.3; 2.1.2; 2.1.3; 2.1.5

2. VOCABULARY
ENERGY - the capacity for movement or the ability to cause movement
HEAT- energy transferred between substances of different temperatures
TEMPERATURE - a measure of the average kinetic energy of the molecules of a substance

3. VOCABULARY
Yeast - a single-celled fungi that obtains energy to live and reproduce by digesting sugar

6. Fermentation - the process of digesting sugar and producing CO2
Sucrose + Water Ethanol + Carbon dioxide + Energy

7. VOCAB cont.
Qualitative Data - general observations that can be best described using words or drawings
Quantitative Data - consists of numerical values for quantities being measured

8. INVESTIGATIVE/TESTABLE QUESTION
What is the effect of temperature on
[manipulated variable]
yeast growth?
[responding variable]

9. HYPOTHESIS If_______________________________
then____________________________,
because__________________________
_________________________________

10. PROCEDURE
Work with 1 other person at your Table to design an Investigation to answer the Investigative/Testable Question.

11. HINTS… The more active the Yeast, the more CO2 produced.
The production of CO2 results in the formation of a layer of foam on top of the yeast solution.

12. HINTS… Some variables to consider: Temperature(s) used
Amount of sugar used
Length of time allowed for yeast fermentation
Method used to measure activity level of yeast

13. Procedure cont.
Write the procedures for your Investigation. They must be specific and detailed.
Review your procedure with your teacher.