TCA West Virginia HiSET Language
Arts Reading (Spanish) Paper Based
Test Exam
Question 1. Which of the following is considered a control variable in a
scientific experiment?
A) The variable that is changed by the experimenter
B) The variable that is measured as the outcome
C) The variable that is kept constant throughout the experiment
D) The variable that occurs naturally
Answer: C
Explanation: A control variable is any factor that is kept constant to
ensure that the experiment tests only the independent variable.
Question 2. What does a line graph best illustrate in scientific data?
A) Differences between categories
,TCA West Virginia HiSET Language
Arts Reading (Spanish) Paper Based
Test Exam
B) The relationship between two variables over time
C) Distribution of data among groups
D) Proportions of a whole
Answer: B
Explanation: Line graphs are used to show changes or trends over time
between two variables.
Question 3. Which of the following is the dependent variable in an
experiment testing plant growth under different light colors?
A) The type of plant used
B) The color of light
C) The amount of water given
,TCA West Virginia HiSET Language
Arts Reading (Spanish) Paper Based
Test Exam
D) The height of the plants
Answer: D
Explanation: The dependent variable is what is measured in the
experiment, in this case, the height of the plants.
Question 4. If a scientist wants to test the effect of fertilizer on tomato
yield, what is the independent variable?
A) Amount of sunlight
B) Type of fertilizer used
C) Number of tomatoes picked
D) Temperature
Answer: B
, TCA West Virginia HiSET Language
Arts Reading (Spanish) Paper Based
Test Exam
Explanation: The independent variable is the one deliberately changed,
which is the type of fertilizer.
Question 5. Which of the following is NOT a step in the scientific
method?
A) Forming a hypothesis
B) Collecting data
C) Ignoring unexpected results
D) Drawing conclusions
Answer: C
Explanation: Ignoring unexpected results is contrary to the scientific
method, which values all observations.
Arts Reading (Spanish) Paper Based
Test Exam
Question 1. Which of the following is considered a control variable in a
scientific experiment?
A) The variable that is changed by the experimenter
B) The variable that is measured as the outcome
C) The variable that is kept constant throughout the experiment
D) The variable that occurs naturally
Answer: C
Explanation: A control variable is any factor that is kept constant to
ensure that the experiment tests only the independent variable.
Question 2. What does a line graph best illustrate in scientific data?
A) Differences between categories
,TCA West Virginia HiSET Language
Arts Reading (Spanish) Paper Based
Test Exam
B) The relationship between two variables over time
C) Distribution of data among groups
D) Proportions of a whole
Answer: B
Explanation: Line graphs are used to show changes or trends over time
between two variables.
Question 3. Which of the following is the dependent variable in an
experiment testing plant growth under different light colors?
A) The type of plant used
B) The color of light
C) The amount of water given
,TCA West Virginia HiSET Language
Arts Reading (Spanish) Paper Based
Test Exam
D) The height of the plants
Answer: D
Explanation: The dependent variable is what is measured in the
experiment, in this case, the height of the plants.
Question 4. If a scientist wants to test the effect of fertilizer on tomato
yield, what is the independent variable?
A) Amount of sunlight
B) Type of fertilizer used
C) Number of tomatoes picked
D) Temperature
Answer: B
, TCA West Virginia HiSET Language
Arts Reading (Spanish) Paper Based
Test Exam
Explanation: The independent variable is the one deliberately changed,
which is the type of fertilizer.
Question 5. Which of the following is NOT a step in the scientific
method?
A) Forming a hypothesis
B) Collecting data
C) Ignoring unexpected results
D) Drawing conclusions
Answer: C
Explanation: Ignoring unexpected results is contrary to the scientific
method, which values all observations.
