Marissa has observed that bread spoils faster in her pantry during the summer months than during the winter months. Based on this observation, she hypothesizes that cooler temperatures slow the growth of mold on bread. She decides to test the following prediction: "If bread is placed in the refrigerator at 2°C, then mold will not appear as quickly as it does on bread that is stored in the pantry at 20°C."
What data should Marissa collect during her experiment?
number of days before mold appears
month of the year
size of the refrigerator
temperature at which the bread is stored
- Number of days before mold appears on bread stored in the refrigerator at 2°C
- Number of days before mold appears on bread stored in the pantry at 20°C
- Size of the bread slices (to ensure consistency in comparing mold growth)
- Type of bread (to ensure consistency in comparing mold growth)
- Humidity levels in the pantry and refrigerator
- Occurrence of any other environmental factors that may affect mold growth (such as exposure to sunlight)
- Any physical changes in the bread over time (such as moisture levels, smell, appearance)