Scientific Test Review for 6-8 gd

Which of the following best describes qualitative data?

• a. data that can be counted

• b. data that is numerical

• c. data that is descriptive and categorical

• d. data that includes measurements

A scientific hypothesis must be __________.

• a. verifiable

• b. falsifiable

• c. observable

• d. repeatable

Scientists often:

• a. rely solely on theoretical models to understand phenomena

• b. use a combination of fieldwork and laboratory experiments to gather data

• c. avoid using technology in their research

• d. depend on anecdotal evidence to draw conclusions

Scientific conclusions are more trustworthy if they are

• a. based on opinions and reproducible

• b. based on evidence and reproducible

• c. numerical, opinion-based, and precise

• d. qualitative, evidence-based, and unique

In a scientific experiment, what is the variable that is intentionally changed to observe its effect?

• a. the dependent variable

• b. the independent variable

• c. the controlled variable

• d. the responding variable

Which variable is manipulated by the researcher in an experiment?

• a. a test (independent) variable

• b. an outcome (dependent) variable

• c. a constant variable

• d. a control group

Scientists consider experimental results valid if the results

• a. align with established theories

• b. can be replicated with consistent outcomes

• c. challenge existing scientific beliefs

• d. inspire new hypotheses and models

Which of the following is a step in the scientific method?

• a. Ignoring data that does not support the hypothesis.

• b. Formulating a hypothesis after conducting experiments.

• c. Stating the problem before conducting experiments.

• d. Drawing conclusions before gathering data.

Why is it important for scientists to replicate experiments conducted by their peers?

• a. To ensure the reliability and accuracy of the experimental results.

• b. To prove that the original experiment was conducted in the best possible way.

• c. To determine if the experiment can be performed in different environments.

• d. To reduce the overall cost of scientific research.

Which of the following is NOT a necessary component for conducting a controlled experiment?

• a. Hypothesis

• b. Independent Variable

• c. Dependent Variable

• d. Control Group