PHYSCI-QT1.pdf

1. A science teacher presents students with a controversial scientific article and asks them to critically assess the methodology, data, and conclusions. Which higher - order thinking science process skill is being emphasized?

• A. analyzing
• B. applying
• C. remembering
• D. understanding

2. In a science experiment, a student sets up an investigation to test the effect of temperature on the rate of plant growth. Which of the following best describes the higher - order thinking skill used in this situation?

• A. analyzing
• B. evaluating
• C. synthesizing
• D. remembering

3. In a scientific study, which of the following best characterizes the significance of replicating experiments by other researchers?

• A. It is an unnecessary redundancy.
• B. It serves to disprove the original hypothesis.
• C. It undermines the credibility of the original research.
• D. It validates the initial findings and ensures reliability.

4. When evaluating the scientific method in a research study, which of the following best describes the purpose of forming a hypothesis?

• A. to summarize the results of the study
• B. to prove the researcher's preconceived notions
• C. to provide a clear prediction of the study's outcome
• D. to guide the research and generate testable predictions

5. An environmental science experiment seeks to examine the effect of soil acidity (pH) on plant growth by using three different types of plants (A, B, and C). Wh ich type of variable is the choice of plant species in this experiment?

• A. controlled
• B. extraneous
• C. dependent
• D. independent

6. Wh ich of the following describes the role of a controlled variable in an experiment?

• A. It is the variable that the experimenter manipulates.
• B. It is the variable that is measured to determine the outcome.
• C. It is kept constant to isolate the effect of the independent variable.
• D. It is the variable that varies in response to the independent variable.

7. According to Dalton's Atomic Theory, which is the fundamental particle of matter ?

• A. atom
• B. electron
• C. isotopes
• D. proton

8. Which of Dalton's postulates explains the law of definite proportions?

• A. Atoms are indivisible and indestructible.
• B. All atoms of a given element are identical.
• C. Atoms combine in small whole - number ratios.
• D. Atoms of different elements can combine to form compounds.

9. How did Dalton's Atomic Theory help explain the law of conservation of mass?

• A. by linking atomic masses to atomic numbers
• B. by demonstrating that atoms are divisible into subatomic particles
• C. by revealing that the mass of an atom changes during a chemical reaction
• D. by showing that atoms are neither created nor destroyed in chemical reactions

10. According to Dalton's Atomic Theory, which of the following best describes an atom during a chemical reaction? Atoms are ____________________.

• A. created
• B. destroyed
• C. rearranged
• D. change d its identity