1. Which of the following is NOT a good scientific practice?

A. Which of the following is NOT a good scientific practice?
B. Selecting data that supports a desired outcome and ignoring contradictory evidence.
C. Peer-reviewing research findings before publication.
D. Replicating experiments to confirm results and validate findings.

Correct answer: B

Rationale: Scientific objectivity requires considering all data, regardless of whether it aligns with initial expectations. Selective bias can lead to inaccurate conclusions.

2. Which phrase best describes the tone of the passage?

A. Humorous and lighthearted
B. Suspenseful and mysterious
C. Objective and informative
D. Critical and judgmental

Correct answer: C

Rationale: The passage presents factual information without injecting personal opinions or emotions. A, B, and D suggest tones not present in the passage's neutral delivery.

3. What is the unit of force in the SI system?

A. Newton (N)
B. Kilogram (kg)
C. Meter (m)
D. Second (s)

Correct answer: A

Rationale: Force is measured in Newtons, named after Isaac Newton who formulated the laws of motion.

4. Scientific notation is a way to represent very large or small numbers in a compact form. If a number is written as 4.82 x 10^3, what is the value of the number in standard form?

A. 0.004 82
B. 0.482
C. 4820
D. 4820000

Correct answer: C

Rationale: Rationale: When a number is written in scientific notation as $a \times 10^n$, the value of the number in standard form is obtained by multiplying $a$ by $10^n$. In this case, the number is $4.82 \times 10^3$. To convert this to standard form, we multiply 4.82 by $10^3$, which means moving the decimal point 3 places to the right. $4.82 \times 10^3 = 4820$ Therefore, the value of the number in standard form is 4820, which corresponds to option C.

5. What is the term for a solution that contains the maximum amount of solute that can dissolve at a specific temperature and pressure?

A. Saturated solution
B. Unsaturated solution
C. Dilute solution
D. Concentrated solution

Correct answer: A

Rationale: A saturated solution is one in which the maximum amount of solute has dissolved under specific conditions. The other choices do not accurately describe a saturated solution.