OSAT OSAT Scientific Inquiry and Principles 2

Question 1

A scientist repeats an experiment five times and gets very similar results each time. This best demonstrates which scientific principle?

Accepted Answer

Reproducibility

Answer

Reproducibility means an experiment yields consistent results when repeated under the same conditions.

Question 2

Which type of variable is deliberately changed by the researcher in a controlled experiment?

Accepted Answer

Independent variable

Answer

The independent variable is the one the researcher deliberately manipulates to observe its effect.

Question 3

A student observes that plants near a window grow taller than those in a dark corner. What is the most appropriate next step in the scientific method?

Accepted Answer

Form a testable hypothesis

Answer

After making an observation, the next step is to formulate a testable hypothesis to explain it.

Question 4

Which graphical representation is BEST suited to show the relationship between two continuous variables?

Accepted Answer

Scatter plot

Answer

A scatter plot displays the relationship between two continuous variables by plotting paired data points.

Question 5

In a study on fertilizer effects on plant growth, keeping water amount, soil type, and light constant is an example of:

Accepted Answer

Controlling variables

Answer

Keeping non-tested factors constant is called controlling variables to isolate the effect of the independent variable.

OSAT Test Practice Test

OSAT Test Practice Test

OSAT OSAT Scientific Inquiry and Principles 2