Scientific Inquiry Vocabulary Quiz
Biology Vocabulary Assessment
Experimental Design, Scientific Inquiry & Ecology
Score: ______ / 11
Grade: ______
Name:
Date:
Period:
Part 1
Multiple Choice Questions (6 Points)
Circle the letter of the correct answer for each scenario.
- A biologist investigates how varying salt concentrations in soil affect the germination rate of radish seeds. In this experiment, the salt concentration is the:
A Dependent variable
B Control group
C Independent variable
D Scientific claim
- In the radish seed experiment, the researcher counts and records the total number of sprouted seeds after seven days. This measured outcome is the:
A Dependent variable
B Placebo effect
C Independent variable
D Experimental treatment
- To test a new growth fertilizer, 25 plants receive the fertilizer while 25 identical plants receive plain water to serve as a benchmark for comparison. The plain water group is the:
A Experimental group
B Control group
C Dependent variable
D Placebo
- In the same fertilizer study, the group of 25 plants receiving the new chemical fertilizer being tested is called the:
A Valid group
B Control group
C Independent condition
D Experimental group
- In a clinical drug trial, volunteers in the comparison group receive a pill that looks identical to the real medicine but contains only sugar and has no legitimate health benefit. This fake treatment is a:
A Variable
B Reasoning step
C Placebo
D Dependent measure
- Zebra mussels were accidentally introduced into the Great Lakes. Because they are non-native and cause severe ecological damage to native shellfish and water infrastructure, they are classified as an:
A Experimental group
B Invasive species
C Independent factor
D Valid population
Biology Vocabulary Assessment • Page 1 of 2
Turn over for Part 2
Biology Vocabulary Assessment • Part 2
Cloze Procedure & Scientific Reasoning
Student Name:
Part 2
Cloze Procedure (5 Points)
Read each scientific inquiry statement below carefully. Complete each blank by selecting the term from the Word Bank that best fits the biological definition and context. Each term will be used exactly once.
Word Bank (Use each term once)
Claim
Evidence
Reasoning
Valid
Variable
7
In scientific research, any factor, trait, or condition that can exist in differing amounts or types within an experiment is known as a(n) . In simple terms, scientists refer to this as a "change" being introduced or observed.
Target Definition: Any condition or trait that can exist in differing amounts within an experiment.
8
After conducting preliminary field observations in an aquatic ecosystem, a student formulates a(n) , which is a formal statement or conclusion that directly answers the initial scientific problem or research question.
Target Definition: A statement or conclusion answering an initial question based on observation.
9
To demonstrate that their scientific conclusion is accurate, the student presents quantitative measurements, laboratory data tables, and documented field facts. These supporting items serve as scientific used to support or refute the conclusion.
Target Definition: Scientific data, facts, or observations that support or refute a claim.
10
In the discussion section of the lab report, the researcher writes clear scientific , providing the logical explanation that connects the collected data to the original conclusion using established biological principles.
Target Definition: The logical explanation connecting evidence to a claim using scientific principles.
11
When peer reviewers confirm that the experiment properly measured what it intended to measure and that every conclusion is supported by sound scientific reasoning and evidence, the experiment is judged to be .
Target Definition: Refers to an experiment or result properly measuring what it intends to measure.
Assessment Complete • Total Items: 11 (6 Multiple Choice + 5 Cloze)
Student Signature:
Scientific Inquiry Answer Key
Teacher Answer Key & Guide
Teacher Copy
Biology Vocabulary Quiz (9/14–9/18) • Scoring & Misconception Guide
Total Assessment: 11 Points
Part 1: 6 Pts | Part 2: 5 Pts
Quick Key (Part 1):
1. C (Indep. Var.) 2. A (Dep. Var.) 3. B (Control Grp) 4. D (Exper. Grp) 5. C (Placebo) 6. B (Invasive Sp.)
Part 1 Multiple Choice Solutions & Distractor Explanations
1 point per question
- Factor manipulated by researcher: Salt concentration
Correct: C
Definition: Independent variable: part of an experiment that the experimenter manipulates (changes).
Common Misconception: Students often swap independent and dependent variables. Remind them: "I change the Independent variable."
- Measured outcome at experiment conclusion: Sprouted seeds count
Correct: A
Definition: Dependent variable: aspect of the experiment that is measured for at the conclusion of the experiment.
Teaching Tip: The dependent variable depends on the independent variable; it represents the resulting data collected.
- Benchmark comparison group receiving plain water:
Correct: B
Definition: Control Group: The group in an experiment that does not receive the experimental treatment and serves as a benchmark for comparison.
Distractor Note: Distinguish from "controlled variables" (constants). The control group is a collection of subjects.
- Group of 25 plants receiving the new fertilizer treatment:
Correct: D
Definition: Experimental Group: The group in a scientific experiment that receives the variable (change) or treatment being tested.
- Fake treatment with no legitimate health benefit:
Correct: C
Definition: Placebo: a treatment that appears real, but is designed to have no legitimate health benefit.
Scientific Role: Used in human trials to isolate the psychological effect of receiving a pill from genuine physiological efficacy.
