# Quiz Over Scientific Method

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| By Leuschen
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Quizzes Created: 1 | Total Attempts: 232
Questions: 15 | Attempts: 232

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• 1.

### One of my 8th grade STUCO kids want to know – What is the effect of acne medicine on pimple reduction? IDENTIFY the INDEPENDENT VARIABLE

• A.

Acne medicine

• B.

Pimple reduction

• C.

Temperature

• D.

Skin type

A. Acne medicine
Explanation
The independent variable in this question is "acne medicine". This means that the researcher is interested in studying how different types or doses of acne medicine affect the reduction of pimples. The independent variable is the factor that the researcher manipulates or controls in an experiment to see its effect on the dependent variable, which in this case is "pimple reduction".

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• 2.

### Nick wanted to see how high an ice cube would float in different temperatures of water. Identify the independent variable

• A.

How high an ice cube floats

• B.

What type of liquid Nick is using

• C.

Temperature of water

C. Temperature of water
Explanation
The independent variable in this experiment is the temperature of water. This is because it is the factor that is being manipulated or changed by Nick in order to observe its effect on how high the ice cube floats. The height at which the ice cube floats is the dependent variable, as it depends on the independent variable (temperature of water) and is being measured or observed in response to the changes in temperature. The type of liquid Nick is using is not relevant to the independent variable in this experiment.

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• 3.

### Mr. Gipson wanted to see how different types of music affected students' pulse rates. He played different types of music: heavy metal, rap, R&B, alternative, pop, country, and classical music. Identify the DEPENDENT variable.

• A.

Mr. Gipson

• B.

Type of music

• C.

Pulse rate

C. Pulse rate
Explanation
The dependent variable in this experiment is the pulse rate. It is the variable that is being measured and is expected to change in response to the different types of music being played. The independent variable is the type of music, as it is being manipulated by Mr. Gipson to observe its effect on the pulse rate.

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• 4.

### Tiffany was investigating how fast it took Hayden to react to different sounds - such as a dog barking, a person yelling, a car honking.   Identify the independent variable.

• A.

How fast Hayden reacts

• B.

Different sounds

• C.

If Hayden is distracted

B. Different sounds
Explanation
The independent variable in this experiment is the different sounds. This means that Tiffany is manipulating the sounds to see how they affect Hayden's reaction time. She is testing whether Hayden reacts differently to a dog barking, a person yelling, or a car honking. The independent variable is the factor that is being changed or controlled by the researcher, in this case, the different sounds.

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• 5.

### I was shopping for paper towels yesterday and it got me thinking.... Which paper towel brand is the strongest? Indentify the dependent variable

• A.

Paper towel brand

• B.

Strength of paper towel

• C.

What I clean up with the paper towel

B. Strength of paper towel
Explanation
The dependent variable in this question is the strength of the paper towel. The question is asking which paper towel brand is the strongest, indicating that the strength of the paper towel is the variable being measured and compared among different brands. The other options mentioned, such as the paper towel brand itself and what is being cleaned up with the paper towel, are not the variables being compared in this question.

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• 6.

### All hypothesis should be written as an _______________________  statement.

• A.

I think

• B.

Sometimes crazy things happen in science

• C.

If/Then

• D.

Because

C. If/Then
Explanation
All hypothesis should be written as an "If/Then" statement because this format allows for a clear and logical expression of the cause-and-effect relationship being investigated. The "If" part of the statement represents the independent variable or the factor being manipulated, while the "Then" part represents the dependent variable or the outcome being measured. This format helps to establish a clear connection between the variables and allows for the formulation of testable predictions.

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• 7.

### If I use fertilizer on my tomato plant, then my tomato plants will grow bigger. Identify the independent variable

• A.

Fertilizer

• B.

Size of plant

• C.

Water, sunlight, amount of dirt

A. Fertilizer
Explanation
The independent variable in this scenario is the fertilizer. It is the factor that is being manipulated or controlled by the person conducting the experiment. By using fertilizer on the tomato plant, the person is testing the effect it has on the size of the plant.

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• 8.

### If I use fertilizer on my tomato plant, then my tomato plants will grow bigger. What would be a constant for this experiment?

• A.

Fertilizer

• B.

Size of tomato plant at end of experiment

• C.

Amount of sunlight

C. Amount of sunlight
Explanation
In this experiment, the constant refers to the factor that remains consistent throughout the experiment and does not change. In this case, the amount of sunlight would be the constant because it is not being manipulated or changed. The experiment is focused on the effect of fertilizer on the size of tomato plants, so the amount of sunlight remains constant to isolate the impact of the fertilizer on plant growth.

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• 9.

### IF I take a yoga class, THEN my flexiblity will increase.  Find the Independent Variable

• A.

My yoga instructor

• B.

Flexibility

• C.

Taking a yoga class

C. Taking a yoga class
Explanation
The independent variable in this scenario is "taking a yoga class". This is because it is the variable that is being manipulated or controlled by the individual. By choosing to take a yoga class, the person is actively making a decision to engage in this activity, which may have an effect on their flexibility. The other options, "my yoga instructor" and "flexibility", are not being directly manipulated or controlled by the individual and therefore do not qualify as independent variables.

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• 10.

### Does an expensive brand of shampoo make my hair shinier?  Identify the dependent variable

• A.

Brand of shampoo

• B.

Shininess of hair

• C.

Length of hair

• D.

Amount of shampoo

B. Shininess of hair
Explanation
The dependent variable in this question is the shininess of hair. The question is asking whether using an expensive brand of shampoo will make the hair shinier. The shininess of the hair is what is being measured and is expected to change based on the brand of shampoo used.

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• 11.

### Does an expensive brand of shampoo make my hair shinier?  Identify a constant in the experiment

• A.

Length of wash time

• B.

Water temperature while washing

• C.

Amount of shampoo

• D.

All of the above

D. All of the above
Explanation
In order to determine if an expensive brand of shampoo makes hair shinier, all of the mentioned factors need to be considered as constants in the experiment. The length of wash time, water temperature while washing, and the amount of shampoo used should remain the same throughout the experiment. By keeping these variables constant, any differences in hair shininess can be attributed to the shampoo itself, allowing for a fair and accurate evaluation of its effectiveness.

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• 12.

### What is the effect of toothpaste of cavity prevention? Identify then independent variable

• A.

Whether or not I have had braces

• B.

Toothpaste

• C.

Cavity prevention

• D.

Toothbrush brand

B. Toothpaste
Explanation
The independent variable in this scenario is toothpaste. The question is asking about the effect of toothpaste on cavity prevention. The independent variable is the factor that is being manipulated or changed in the experiment, and in this case, it is the type or brand of toothpaste being used.

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• 13.

### My 3 year old wants to know --   Which nail polish best reduces chipping? Identify the dependent variable

• A.

Nail polish

• B.

Chipping

• C.

Whether or not I bite my nails

B. Chipping
Explanation
The dependent variable in this question is "chipping." This means that the question is asking which nail polish is best at reducing the occurrence of chipping. The other options mentioned, such as "nail polish" and "whether or not I bite my nails," are not the variables being measured or compared in this context.

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• 14.

### If I buy expensive running shoes, THEN I will jog faster.  Identify the independent variable.

• A.

Not a chance Mrs. L - you won't run faster with new shoes

• B.

Running shoes

• C.

Speed of jog

B. Running shoes
Explanation
The independent variable in this scenario is "running shoes". The independent variable is the factor that is being manipulated or changed in an experiment or study. In this case, the individual is suggesting that buying expensive running shoes will lead to jogging faster. Therefore, the variable being manipulated or changed is the type of running shoes, making it the independent variable.

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• 15.

### The final step of the scientific method is to

• A.

Stop researching

• B.

Form a conclusion and then think of a new question and start the process over

• C.

Form a conclusion and never think of the experiment again

• D.

None of the above

B. Form a conclusion and then think of a new question and start the process over
Explanation
The final step of the scientific method is to form a conclusion and then think of a new question and start the process over. This is because the scientific method is an iterative process, where each experiment and its conclusions lead to new questions and further research. It is important to continue questioning and testing hypotheses to further advance scientific knowledge.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Sep 04, 2012
Quiz Created by
Leuschen

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