Question

You have developed a hypothesis that death metal music has a positive effect on the growth of sunflowers. You set up an experiment where you play different types of music to the plants and measure their vertical growth rate in cm/day over two weeks.

Use the scenario shown above to answer Question 3. In the above experiment, which would be your independent variable?

Select one:

a. Type of music

b. The volume of the music

c. Time

d. Growth rate of the sunflower

You have developed a hypothesis that death metal music has a positive effect on the growth of sunflowers. You set up an experiment where you play different types of music to the plants and measure their vertical growth rate in cm/day over two weeks.

The scenario shown above is the same as that shown in Question 3. Use this scenario to answer Question 4. Using the scenario above, which would be the most sensible control group to include in your experiment?

Select one:

a. A pot with no sunflower exposed to death metal music

b. A sunflower exposed to no music

c. A different type of flower exposed to death metal music

d. A sunflower exposed to classical music

Answer 1

Answer 3:
Option a. - Type of music.

Since it is the reaction of Sunflower to a certain music then the type of music is our independent variable.

Answer 4:
Option b. - A sunflower exposed to no music.

As our hypothesis and experiment is developed on the reaction of sunflowers to a certain music, then a sunflower not exposed to any music will be the control to measure what is the normal daily growth of stalk in cms and what is the additional gain in stalk length when grown with music.