Question

question 25
2 pts
from the anthocyanin and beets experiment, match each variable with its appropriate part of the experiment:
independent variable
choose
temperature
different sized tubes used
absorbance units
same size tubes used
color of test tubes
different sized beet pieces
dependent variable
a standardized variable

Explanation:

• Independent variable: This is the variable that is changed or controlled in a scientific experiment. In the context of the anthocyanin and beets experiment, temperature is the factor that is deliberately manipulated.
• Dependent variable: This is the variable being tested and measured in an experiment. Absorbance units measure how much light is absorbed by the anthocyanin, which depends on the temperature (the independent variable).
• Standardized variable: These are variables that are kept constant throughout the experiment to ensure a fair test. Using the same size tubes is an example of a standardized variable as it prevents tube - size from affecting the results.

Answer:

• Independent variable: temperature
• Dependent variable: absorbance units
• Standardized variable: same size tubes used