WorksheetsBIO122 CHAPTER 2 - SCIENTIFIC METHODS
Total questions: 20
Worksheet time: 10mins
What is the definition of "Science"?
To observe
To know
To explore
To experiment
Which of the following is the first step in the scientific method?
Hypothesis
Experiment
Observation
Conclusion
The scientific method helps scientists to:
Prove a theory
Test a hypothesis
Observe untested variables
Create new hypotheses
What does a hypothesis describe in the scientific method?
A conclusion based on experiments
A testable prediction or explanation
A result of an experiment
A scientific theory
In hypothesis-based science, the independent variable is:
What remains constant
What is being tested or manipulated
What is being measured
The prediction
What is a prediction in the scientific method?
A result based on a hypothesis
The first step of the scientific method
A final conclusion from an experiment
A method used to collect data
In an experiment testing sunlight’s effect on plant growth, the dependent variable is:
The amount of sunlight
The growth of the plant
The type of plant
The temperature of the environment
The control group in an experiment is:
The group that is exposed to the experimental treatment
The group used for comparison
The group with the most variables
The group that is observed
What is the primary difference between qualitative and quantitative data?
Qualitative data is numeric, quantitative is descriptive
Quantitative data is numeric, qualitative is descriptive
Both types of data are numeric
Quantitative data is unstructured, qualitative is structured
What is a null hypothesis?
A hypothesis stating no effect between variables
A hypothesis with a strong prediction
A hypothesis based on previous knowledge
A testable statement with two outcomes
Which of the following is an example of qualitative data?
The temperature of the water in an experiment
The number of tomatoes produced by a plant
The color of the sky during sunset
The weight of a mouse
A variable that is kept constant in an experiment to prevent it from affecting the dependent variable is called:
Dependent variable
Independent variable
Controlled variable
Experimental variable
What type of analysis method is used for quantitative data?
ANOVA or t-test
Categorization
Observational analysis
Descriptive analysis
The scientific method is most often associated with:
The discovery of new theories
A repeatable, logical process for testing hypotheses
The presentation of findings in a scientific journal
An experimental procedure for confirming theories
Which type of hypothesis is tested by experimenting with a set of variables to determine its effect?
Null hypothesis
Alternative hypothesis
Hypothesis of certainty
Hypothesis of observation
What is the primary function of experimental controls in an experiment?
To measure the dependent variable
To manipulate the independent variable
To eliminate bias and other variables that could affect the results
To predict future outcomes
What should a conclusion based on an experiment do?
It should only state whether the hypothesis was correct.
It should accept or reject the hypothesis based on the evidence collected
It should provide recommendations for new theories
It should focus only on the predictions made
In a well-designed experiment, how many replicates of samples should typically be used to ensure accuracy?
One replicate
Two replicates
Three or more replicates
No replicates
Which of the following is a characteristic of good scientific data?
It can only be collected once
It is consistent and reproducible
It should not be analyzed
It is subjective and opinion-based
What is the primary function of a scientific theory?
It serves as a final explanation of all observations
It provides a broad and general explanation supported by a large body of evidence
It predicts specific results in an experiment
It is always proven correct after one experiment
