Biology Unit One - Study Guide (Answers)

1. You are going to conduct an experiment in order to determine if a candle requires oxygen to burn. In your experiment, you are simply going to place the candle in a sealed jar. What do you think will happen?

  1. Independent Variable

    Oxygen

  2. Dependent Variable

    Candle Burning

  3. Hypothesis

    If there is a relationship between oxygen and candle burning, then when a burning candle is covered with a jar, the candle will go out.

2. You are going to conduct an experiment to test the use of fertilizer on plants. In your experiment, you are going to use two plants. One will receive fertilizer while the other does not. Write your hypothesis where you explain what you think will happen.

  1. Independent Variable

    Type of Fertilizer

  2. Dependent Variable

    Growth of Plants

  3. Hypothesis

    If there is a relationship between the type of fertilizer and the growth of plants (cm), then when fertilizer is added to the plant, the height of the plant will increase.

  1. You are going to conduct an experiment on a person in order to determine if they study better with or without music. In your experiment, you are going to have this person study for two similar tests. They will study for one of the tests with music and the other in silence. Write a hypothesis where you predict the outcome of your study.

  1. Independent Variable

    Type of Music

  2. Dependent Variable

    Studying

  3. Hypothesis

    If there is a relationship between the type of music and studying, then when students listen to music, they will have a higher rate of success on their tests (shown in percent).

6. What was the initial observation?

The initial observation was Homer noticing the green slime on his shower.

7. Identify the Control Group

The Control Group was Homer spraying half of the shower with water.

8. Independent Variable

The Independent Variable was the coconut juice.

9. Dependent Variable

The Dependent Variable was that there was no change in the shower.

10. What should Homer’s conclusion be?

Homer’s conclusion should be that the coconut juice and water both did nothing for his shower.

11. Control Group

The Control Group was the non-microwaved mice.

12. Independent Variable

The Independent Variable was the mice not exposed to the microwave.

13. Dependent Variable

The Dependent Variable was the mice exposed to the microwave.

14. What should Bart’s conclusion be?

Bart’s conclusion should be that there isn’t enough evidence to make a proper conclusion.

15. How could Bart’s experiment be improved?

Bart’s experiment can be improved by doing more trials or adding more mice.