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.

S&S 3.1Bubble Blowing Fungi

Designing your own Investigation

GLEs 1.2.1; 1.2.3; 2.1.2; 2.1.3; 2.1.5

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

VOCABULARY

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

Fermentation - the process of digesting sugar and producing CO2

Sucrose + Water Ethanol + Carbon dioxide + Energy

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

INVESTIGATIVE/TESTABLE QUESTION

What is the effect of temperature on

[manipulated variable]

yeast growth?

[responding variable]

HYPOTHESIS

If_______________________________

then____________________________,

because__________________________

_________________________________

PROCEDURE

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

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.

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

Procedure cont.

• Write the procedures for your Investigation. They must be specific and detailed.

• Review your procedure with your teacher.