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Exam Review

Key Facts: PAU Ciències Generals (UIB) Exam

UIB 2026

Universitat de les Illes Balears official PAU organizing authority

UIB PAU Commission

90 Mins

Official examination duration

PAU Balears

Min 4.0

Minimum Access Phase score required to calculate university admission mark

UIB Admission Regulations

4 Topics

Science & Society, Energy, Health & Biomedicine, Materials & Tech

LOMLOE 2º Bachillerato Syllabus

100

Practice questions available in this OpenExamPrep bank

OpenExamPrep

The Balearic Islands PAU General Sciences exam evaluates core scientific literacy and competency across epistemology, climate science, health, and nanotechnology for 2º Bachillerato students.

Sample PAU Ciències Generals (UIB) Practice Questions

Try these sample questions to review concepts for the PAU Ciències Generals (UIB) exam. 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 principle), which criterion 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 empirically proven true beyond all future doubt.
C.It must be supported by unanimous consensus among established scientific authorities.
D.It must rely on intuitive self-evidence that requires 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 changed by the experimenter (here, light intensity) to observe its effect on the dependent variable (photosynthetic rate).
3What is the primary purpose of including a control group in a scientific experiment?
A.To increase the sample size so that statistical calculations become easier.
B.To ensure that all experimental subjects experience the maximum dosage of the treatment.
C.To provide a baseline for comparison against which the effects of the experimental treatment can be isolated.
D.To replace the need for repeating trials or measuring dependent variables.
Explanation: A control group is handled under identical conditions as experimental groups except for the key factor being tested, providing a baseline comparison to prove that observed changes are caused solely by the manipulated variable.
4Which of the following best describes the role of academic peer review in scientific publishing?
A.It guarantees that published research is 100% free of error or future revision.
B.It is a public voting procedure where general online audiences vote on research credibility.
C.It is a legal copyright process conducted by patent lawyers to protect intellectual property.
D.It involves independent domain experts evaluating a study's methodology, data interpretation, and validity prior to publication.
Explanation: Peer review is a critical quality control mechanism in science where independent experts in the field evaluate manuscript rigor, logic, methodology, and scientific validity before publication.
5A strong positive correlation is observed between ice cream sales and drownings during summer months. What does this statistical correlation demonstrate?
A.Correlation indicates a mathematical association, but does not prove direct cause and effect, often due to a third confounding factor (e.g., warm weather).
B.Drowning incidents cause people to buy more ice cream out of grief.
C.Eating ice cream directly causes muscle cramps that lead to drowning.
D.The data must be fraudulent because negative correlations are mandatory in public health datasets.
Explanation: A statistical correlation indicates that two variables change together, but does not imply causation. In this classic example, hot summer temperature is a confounding variable driving both swimming activity (drowning risk) and ice cream consumption.
6In a double-blind clinical trial evaluating a novel pharmaceutical drug, who is kept unaware of whether a patient receives the drug or a placebo?
A.Only the patient receiving the treatment
B.Both the patients and the researchers/physicians administering and assessing the treatment
C.Only the physicians and clinical researchers administering the study
D.The institutional ethics board and regulatory approval agencies
Explanation: In a double-blind trial, neither the participants nor the research staff know who is receiving the active drug versus placebo, eliminating both patient placebo expectations and researcher observer bias.
7What is meant by 'scientific consensus' regarding a global phenomenon such as anthropogenic climate change?
A.A political agreement reached by government representatives at an international summit.
B.A dogma that prohibits future testing or questioning of scientific theories.
C.The overwhelming collective judgment and agreement of qualified scientists based on rigorous, peer-reviewed evidence.
D.An opinion poll conducted among the general voting public.
Explanation: Scientific consensus represents the collective position, convergence of evidence, and agreement among the vast majority of domain-expert scientists after extensive empirical testing and peer review.
8Which characteristic is most indicative of a pseudoscientific discipline compared to legitimate science?
A.Reliance on reproducible experimental results and peer-reviewed journals
B.Quantitative mathematical modeling of natural mechanisms
C.Continuous self-correction and modification of concepts when new data appears
D.Use of vague, un-falsifiable claims, anecdotal evidence, and resistance to peer critique
Explanation: Pseudoscience typically relies on non-falsifiable assertions, emotional testimonials, cherry-picked anecdotes, and rejection of peer review or self-correcting mechanisms.
9In statistical hypothesis testing, a p-value of 0.03 ($p < 0.05$) is obtained. What does this result signify?
A.Assuming the null hypothesis were true, there is only a 3% probability of obtaining an effect as extreme as observed, allowing rejection of the null hypothesis at the 5% significance level.
B.There is a 97% probability that the experimental hypothesis is 100% true.
C.The experiment contains a 3% measurement error rate in instrumentation.
D.The null hypothesis must be accepted as conclusively proven.
Explanation: A p-value measures the probability of observing test results at least as extreme as the actual results, under the assumption that the null hypothesis ($H_0$) is true. When $p = 0.03 < 0.05$, $H_0$ is rejected in favor of statistical significance.
10How do systematic errors differ fundamentally from random errors in scientific measurements?
A.Systematic errors can be completely eliminated by averaging multiple repeated trials, while random errors cannot.
B.Systematic errors cause readings to deviate predictably in one consistent direction due to faulty calibration, whereas random errors cause unpredictable scatter around the true value.
C.Systematic errors only occur in biological studies, whereas random errors are restricted to physics.
D.Systematic errors increase sample variance without affecting accuracy or bias.
Explanation: Systematic errors shift measurements consistently in one direction (affecting accuracy/bias, e.g. uncalibrated scale). Random errors cause unpredictable fluctuations (affecting precision), which can be reduced by averaging repeated trials.

About the PAU Ciències Generals (UIB) Exam

The Balearic Islands PAU General Sciences (Ciències Generals 2º Bachillerato UIB) practice bank provides comprehensive preparation for students sitting the Spanish university entrance exam in the Balearic Islands. The curriculum tests critical reasoning in scientific inquiry, energy transition dynamics, biomedical technologies, gene editing, microelectronics, and sustainable material science.

Exam sponsor: PAU Organising Commission of the Balearic Islands / UIB. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

90-minute examination divided into 4 core thematic units: Science & Society (25%), Energy & Sustainability (25%), Health & Biomedicine (25%), and Materials & Technology (25%). Local practice items are an English-language MCQ study adaptation of the official open/semi-constructed Balearic Islands PAU paper, not an official translation or format simulation.

Time Limit

90 minutes (1.5 hours)

Passing Score

Marked on a 0–10 scale. Minimum 4.0 required in Access Phase to combine with Bachillerato GPA (60% Bachillerato + 40% PAU >= 5.0 to pass).

Exam / Certification Fees

EUR 69.21 ordinary registration fee (Access Phase); EUR 13.85 per additional Admission Phase subject paper (UIB 2026)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

25%

Science & Society / Scientific Method

Epistemology, scientific methodology, experimental design, control variables, data analysis, peer review, and distinguishing science from pseudoscience.

25%

Energy & Sustainability

Renewable vs non-renewable energy sources, greenhouse effect, climate change mitigation, carbon footprint, life cycle analysis, and circular economy.

25%

Health & Biomedicine

Pathogens and immunity, vaccines, antibiotics and resistance, lifestyle diseases, genetics, biotechnology ethics, CRISPR gene editing, and epidemiology.

25%

Materials & Technology

Polymers and plastics, smart nanomaterials (graphene), semiconductor physics, rare earth metals in electronics, and environmental impacts of digital technology.

Preparing for the PAU Ciències Generals (UIB) Exam

What You Need to Know

  • Passing score: Marked on a 0–10 scale. Minimum 4.0 required in Access Phase to combine with Bachillerato GPA (60% Bachillerato + 40% PAU >= 5.0 to pass).
  • Assessment: 90-minute examination divided into 4 core thematic units: Science & Society (25%), Energy & Sustainability (25%), Health & Biomedicine (25%), and Materials & Technology (25%). Local practice items are an English-language MCQ study adaptation of the official open/semi-constructed Balearic Islands PAU paper, not an official translation or format simulation.
  • Time limit: 90 minutes (1.5 hours)
  • Exam / certification fees: EUR 69.21 ordinary registration fee (Access Phase); EUR 13.85 per additional Admission Phase subject paper (UIB 2026) Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

PAU Ciències Generals (UIB): Suggested Study Strategy

1Master the scientific method: understand independent vs. dependent variables, control groups, and double-blind experimental design.
2Review energy conversion calculations, Global Warming Potential (GWP), and Life Cycle Assessment (LCA) stages.
3Understand modern biotechnology tools such as PCR, gel electrophoresis, recombinant DNA, and CRISPR-Cas9 mechanism.
4Study semiconductor band theory (p-n junctions), nanomaterial properties (graphene, carbon nanotubes), and polymer degradation.

Frequently Asked Questions

Are these official Balearic Islands PAU exam questions?

Local practice items are an English-language MCQ study adaptation of the official open/semi-constructed Balearic Islands PAU paper, not an official translation or format simulation. Use official UIB past papers and subject matrices for open-response, listening, graphic, and performance practice.

What is the fee for taking the PAU exam in the Balearic Islands (UIB 2026)?

The fee is EUR 69.21 for the ordinary registration fee (Access Phase) and EUR 13.85 per additional Admission Phase subject paper.

What passing score is required on the PAU General Sciences exam?

The exam is marked on a 0–10 scale. A minimum mark of 4.0 is required in the Access Phase to combine with the Bachillerato GPA (60% Bachillerato + 40% PAU >= 5.0 to pass).

What is the duration of the PAU Ciències Generals exam?

The examination duration is 90 minutes (1.5 hours).

In which official languages is the exam administered in the Balearic Islands?

The official examination is available in Catalan (ca) and Spanish (es).