Question

1. maria wondered if different colors (red, orange, yellow, green, blue, and purple) of plastic wrap affected the time for bread to mold. she also wrapped a slice of bread in clear plastic wrap to see how they may normally mold. before wrapping the same type of bread (wonder whole wheat), she placed 5 ml of water in the center of each slice. the slices were of the same size and wrapped in the same manner and kept in a dark space at 75 degrees fahrenheit. she measured the bread mold. independent variable: dependent variable: controls:

Explanation:

The independent variable is what the experimenter changes. Here, it's the color of the plastic - wrap. The dependent variable is what is measured as a result of the change in the independent variable, which is the time for bread to mold. Controls are factors kept the same to ensure a fair test. In this case, they are the size of bread slices, amount of water (5 ml in the center of each slice), type of bread, wrapping manner, storage conditions (kept in a dark space at 75 degrees Fahrenheit).

Answer:

Independent variable: Color of plastic - wrap
Dependent variable: Time for bread to mold
Controls: Size of bread slices, amount of water (5 ml in center of each slice), type of bread, wrapping manner, storage conditions (dark space at 75 degrees Fahrenheit)