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100+ Free PAU Ciencias Generales (Canarias) Practice Questions
Canary Islands PAU General Sciences Exam — Ciencias Generales 2º Bachillerato ULPGC / ULL 2026 practice questions are available now; exam metadata is being verified.
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2026 Statistics
Key Facts: PAU Ciencias Generales (Canarias) Exam
COPAU 2026
Canary Islands PAU Organising Commission authority (ULPGC & ULL)
Gobierno de Canarias / COPAU
90 Mins
Official examination duration
PAU Canarias Regulations
Min 4.0
Minimum Access Phase score required to calculate university admission mark
Canary Islands University Admission Regulations
4 Blocks
Scientific Methodology, Energy & Environment, Health & Biomedicine, Materials & Tech
LOMLOE 2º Bachillerato Syllabus
100
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OpenExamPrep
The Canary Islands PAU General Sciences exam evaluates core scientific literacy and competency across epistemology, climate science, island sustainability, health, and nanotechnology for 2º Bachillerato students.
Sample PAU Ciencias Generales (Canarias) Practice Questions
Try these sample questions to test your PAU Ciencias Generales (Canarias) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1According to modern scientific epistemology (such as Karl Popper's demarcation criterion), which characteristic is essential for a hypothesis to be considered scientific?
A.It must make testable predictions that can potentially be falsified by empirical evidence.
B.It must be capable of being proven true beyond all future doubt by empirical induction.
C.It must be supported by unanimous consensus among established scientific institutions.
D.It must rely on self-evident intuitive axioms that require no experimental validation.
Explanation: Karl Popper established that scientific statements are distinguished from pseudoscience or dogma by their falsifiability—the logical possibility that an assertion can be contradicted by empirical observation or experimental outcome.
2In a controlled laboratory experiment investigating how light intensity affects plant photosynthetic rate, what is the light intensity called?
A.The dependent variable
B.The independent variable
C.The controlled variable
D.The confounding variable
Explanation: The independent variable is the factor deliberately manipulated or varied by the researcher (here, light intensity) to observe its effect on the dependent variable (photosynthetic rate).
3Why is a double-blind trial design considered the gold standard in clinical biomedical testing?
A.It ensures that both treatment and control groups receive double the dosage of the test drug.
B.It allows researchers to modify experimental protocols midway through the study.
C.It eliminates both participant expectation bias and observer bias during evaluation.
D.It guarantees that no participants experience placebo side effects.
Explanation: In a double-blind study, neither the participants nor the clinical evaluators know who receives the active treatment versus placebo, thereby preventing psychological expectations or observer subjective bias from skewing the results.
4What primary function does peer review serve prior to publishing research in a scientific journal?
A.It guarantees that published findings will never be disproven by future research.
B.It grants intellectual property patents to the authoring research institution.
C.It legally protects authors from civil liability arising from experimental accidents.
D.It evaluates experimental methodology, statistical rigor, and validity via independent experts.
Explanation: Peer review involves expert domain scholars scrutinizing submitted manuscripts for methodological soundness, accurate data analysis, logical conclusions, and original contribution to scientific knowledge.
5How do systematic errors differ fundamentally from random errors in experimental measurements?
A.Systematic errors consistently shift measurements in one direction, whereas random errors fluctuate unpredictably.
B.Systematic errors can be reduced by averaging repeated measurements, whereas random errors cannot.
C.Systematic errors are caused by environmental noise, whereas random errors stem from uncalibrated instruments.
D.Systematic errors only affect precision, whereas random errors exclusively degrade measurement accuracy.
Explanation: Systematic errors (e.g. zero offset on a scale) bias measurements in a consistent direction and affect accuracy, while random errors produce unpredictable scatter around the mean and affect precision.
6Which of the following traits is characteristic of pseudoscience rather than genuine empirical science?
A.Continuous self-correction when confronted with contradictory empirical evidence.
B.Reliance on ad-hoc excuses and vague, non-falsifiable claims to explain away negative results.
C.Transparent publication of experimental methodologies to allow independent replication.
D.Quantitative measurement of variables using standardized International System (SI) units.
Explanation: Pseudoscience relies on immunizing hypotheses against falsification using ad-hoc explanations, anecdotal evidence, and untestable assertions, unlike genuine science which adapts to empirical data.
7What cognitive phenomenon occurs when a researcher preferentially notices and records data that confirm their pre-existing hypothesis while disregarding contradicting data?
A.The Hawthorn effect
B.Placebo effect
C.Confirmation bias
D.Hindsight bias
Explanation: Confirmation bias is the psychological tendency to search for, interpret, favor, and recall information in a way that confirms one's prior beliefs or hypotheses.
8An observational study finds a strong positive correlation between ice cream sales and drowning incidents in coastal cities. What is the most scientifically sound interpretation?
A.Ice cream consumption directly impairs swimming ability and causes drowning.
B.Drowning events trigger psychological distress that increases ice cream cravings.
C.Ice cream sales and drowning rates share an inverse causal feedback loop.
D.A confounding variable (hot summer weather) independently increases both outdoor swimming and ice cream consumption.
Explanation: Correlation does not imply causation. Both variables are influenced by a third confounding variable—warm ambient temperature—which leads to more swimming (raising drowning risk) and higher ice cream sales.
9A student measures the density of a volcanic basalt sample from Tenerife as 2.65 g/cm³. The accepted standard reference value is 2.70 g/cm³. What is the relative percentage error of the student's measurement?
A.1.85%
B.5.00%
C.0.05%
D.2.65%
Explanation: Relative percentage error = (|Measured Value - Accepted Value| / Accepted Value) * 100 = (|2.65 - 2.70| / 2.70) * 100 = (0.05 / 2.70) * 100 = 1.85%.
10Four repeated lab analyses yield sample concentrations of 10.1 mg/L, 10.2 mg/L, 10.1 mg/L, and 10.2 mg/L. The true concentration is 15.0 mg/L. How should these measurements be characterized?
A.High accuracy and high precision
B.High precision but low accuracy
C.Low precision but high accuracy
D.Low accuracy and low precision
Explanation: The measurements are tightly clustered together (low variance, high precision) but deviate significantly from the true value of 15.0 mg/L (large systematic bias, low accuracy).
About the PAU Ciencias Generales (Canarias) Practice Questions
Verified exam format metadata for Canary Islands PAU General Sciences Exam — Ciencias Generales 2º Bachillerato ULPGC / ULL 2026 is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.