INTRODUCTION
SCIENTIFIC INQUIRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dependent variable
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Operational Definition
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Independent Variable
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Control Variable
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Detailed explanation-1: -The dependent variable is the area of mould (mm2) measured by placing a transparent sheet with 1mm2 grids above the moulded area of the sealed bread sample. The squares with over 50% of mould coverage are then counted (figure 2).
Detailed explanation-2: -The independent variable for the experiment is light and the dependent variable is bread mold reproduction.
Detailed explanation-3: -Dependent Variables: Dough or bread texture. Dough pore size, AKA bubble size. Taste. Color, before and after baking.
Detailed explanation-4: -Independent variable: Environmental conditions (sunlit area, cold, moisture and warmth). Dependent variable: Area of mould growth on bread.
Detailed explanation-5: -One common method is to get (or make) a transparent grid (you could carefully, with a ruler, draw a grid on a transparency). Then you can overlay the grid on your bread pieces and count how many squares are “mold-filled.” A similar option would be to take pictures of the bread and overlay your grid on the pictures.