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100+ Free QC Sec 4 Science & Tech Practice Questions

Pass your Secondary 4 Science and Technology Ministerial Examination — Québec (Science et technologie, 4e secondaire - Code 055-410 / 555-410 Épreuve unique) exam on the first try — instant access, no signup required.

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Key Facts: QC Sec 4 Science & Tech Exam

Code 055-410 / 555-410

Official MEQ ministerial course code for Secondary 4 Science and Technology

MEQ Québec

50%

Weighting of the ministerial exam toward final course grade

MEQ Evaluation Framework

3 Hours

Standard duration of the written theory Épreuve Unique

MEQ Exam Schedule

4 Domains

Material World, Living World, Earth & Space, Technological World

PFEQ Curriculum

100

Practice questions available in this OpenExamPrep bank

OpenExamPrep

Québec Secondary 4 Science and Technology (055-410) Épreuve Unique is a compulsory 3-hour written theory exam covering Material World, Living World, Earth and Space, and Technological World.

Sample QC Sec 4 Science & Tech Practice Questions

Try these sample questions to test your QC Sec 4 Science & Tech exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1An neutral atom of sulfur has an atomic number of 16 and a mass number of 32. How many protons, neutrons, and electrons does this atom contain?
A.16 protons, 16 neutrons, 16 electrons
B.16 protons, 32 neutrons, 16 electrons
C.32 protons, 16 neutrons, 32 electrons
D.16 protons, 16 neutrons, 32 electrons
Explanation: The atomic number ($Z = 16$) specifies the number of protons (16). In a neutral atom, the number of electrons equals protons (16). The number of neutrons is mass number minus atomic number ($A - Z = 32 - 16 = 16$).
2Which Rutherford-Bohr model representation corresponds to a neutral magnesium atom ($Z = 12$)?
A.A nucleus with 12 protons, surrounded by 3 electron shells containing 2, 8, and 2 electrons.
B.A nucleus with 12 protons, surrounded by 2 electron shells containing 8 and 4 electrons.
C.A nucleus with 12 protons, surrounded by 3 electron shells containing 2, 6, and 4 electrons.
D.A nucleus with 24 protons, surrounded by 3 electron shells containing 2, 8, and 2 electrons.
Explanation: Magnesium is in Period 3 and Group IIA (Group 2). It has 12 electrons distributed as: 1st shell = 2 (max), 2nd shell = 8 (max), 3rd shell = 2 valence electrons.
3Which chemical family on the periodic table is characterized by having 7 valence electrons, high reactivity, and forming salts when reacting with alkali metals?
A.Halogens (Group VIIA / Group 17)
B.Alkali metals (Group IA / Group 1)
C.Alkaline earth metals (Group IIA / Group 2)
D.Noble gases (Group VIIIA / Group 18)
Explanation: Halogens (fluorine, chlorine, bromine, iodine) belong to Group VIIA (17), possess 7 valence electrons, are highly reactive non-metals, and readily react with alkali metals to form ionic salts.
4A student dissolves 15 g of sodium chloride (NaCl) in water to make a total solution volume of 250 mL. What is the concentration of the solution in g/L?
A.60 g/L
B.3.75 g/L
C.37.5 g/L
D.600 g/L
Explanation: Concentration C = m / V. Convert volume to liters: 250 mL = 0.250 L. C = 15 g / 0.250 L = 60 g/L.
5A water sample contains 0.005 g of lead dissolved in 2.0 kg of water solution. What is the concentration of lead in parts per million (ppm)?
A.2.5 ppm
B.0.0025 ppm
C.25 ppm
D.10 ppm
Explanation: Concentration in ppm = (mass of solute in grams / mass of solution in grams) * 10^6. Convert 2.0 kg to grams: 2000 g. C = (0.005 / 2000) * 10^6 = 2.5 ppm. Alternatively, 1 ppm = 1 mg/kg. 0.005 g = 5 mg. 5 mg / 2 kg = 2.5 ppm.
6How many grams of sugar are required to prepare 500 mL of a 4% (m/V) aqueous sugar solution?
A.20 g
B.80 g
C.4 g
D.125 g
Explanation: A 4% (m/V) solution means 4 g of solute per 100 mL of solution. For 500 mL: m = (4 g / 100 mL) * 500 mL = 20 g.
7Solution A has a pH of 3 and Solution B has a pH of 6. Which statement accurately compares their hydrogen ion concentration [H+]?
A.Solution A is 1000 times more acidic (has 1000x higher [H+]) than Solution B.
B.Solution B is 3 times more acidic than Solution A.
C.Solution A is 30 times more acidic than Solution B.
D.Solution A is 3 times more acidic than Solution B.
Explanation: The pH scale is logarithmic (base 10). A decrease of 1 pH unit represents a 10-fold increase in [H+]. The difference between pH 3 and pH 6 is 6 - 3 = 3 units, so Solution A is 10^3 = 1000 times more acidic than Solution B.
8Consider the balanced neutralization reaction: HCl + NaOH -> NaCl + H2O. If 73.0 g of HCl (molar mass = 36.5 g/mol) reacts completely with sodium hydroxide, what mass of water (molar mass = 18.0 g/mol) is produced?
A.36.0 g
B.18.0 g
C.73.0 g
D.54.5 g
Explanation: 1) Calculate moles of HCl: n = 73.0 g / 36.5 g/mol = 2.0 mol. 2) From stoichiometric ratio (1:1), 2.0 mol of HCl produces 2.0 mol of H2O. 3) Calculate mass of water: m = 2.0 mol * 18.0 g/mol = 36.0 g.
9In a closed container, 12.0 g of methane (CH4) reacts completely with 48.0 g of oxygen gas (O2) to form carbon dioxide (CO2) and water (H2O). If 33.0 g of CO2 is produced, what mass of H2O was formed?
A.27.0 g
B.60.0 g
C.15.0 g
D.33.0 g
Explanation: According to the Law of Conservation of Mass: Total mass of reactants = Total mass of products. m(CH4) + m(O2) = m(CO2) + m(H2O). 12.0 g + 48.0 g = 60.0 g. Therefore, 60.0 g = 33.0 g + m(H2O) -> m(H2O) = 60.0 - 33.0 = 27.0 g.
10When a vinyl rod is rubbed with wool, the vinyl rod becomes negatively charged. What transfer of particles occurred during friction?
A.Electrons transferred from the wool to the vinyl rod.
B.Protons transferred from the vinyl rod to the wool.
C.Electrons transferred from the vinyl rod to the wool.
D.Protons transferred from the wool to the vinyl rod.
Explanation: In static electricity charging by friction, only electrons can move. Since vinyl has a higher affinity for electrons than wool, electrons are pulled from the wool to the vinyl rod, giving vinyl a net negative charge and wool a net positive charge.

About the QC Sec 4 Science & Tech Exam

The Québec Secondary 4 Science and Technology (055-410 / 555-410) Épreuve Unique is the standardized ministerial examination required for high school graduation credit in Québec. The exam covers four essential domains of the Programme de formation de l'école québécoise (PFEQ): Material World (chemistry, physics, electricity), Living World (ecology, genetics, cell biology), Earth and Space (geology, hydro/atmosphere, biogeochemical cycles), and Technological World (engineering materials, technical drawings, mechanical systems). This practice bank provides comprehensive preparation with worked calculation problems and detailed rationale for every option. This OpenExamPrep bank is an English-language MCQ study adaptation for program knowledge and judgment; it does not reproduce or replace the official ministerial assessment format.

Assessment

3-hour ministerial theory examination (25 questions) covering Living World, Earth and Space, Material World, and Technological World; practical component is school-developed.

Time Limit

3 hours

Passing Score

Counts for 50% of final course mark; 60% required for DES credit

Exam Fee

Free for public/subsidized secondary school students in Quebec (Ministère de l'Éducation du Québec (MEQ))

QC Sec 4 Science & Tech Exam Content Outline

35%

Material World

Properties of matter, periodic table, chemical changes, stoichiometry, solutions and concentration, electricity (Ohm's law, circuits, power/energy), and electromagnetism.

25%

Living World

Ecology, ecosystems, trophic levels and energy flow, biogeochemical dynamics, genetics, cell division (mitosis/meiosis), and cellular processes (photosynthesis/respiration).

20%

Earth and Space

Geological processes, lithosphere and soil chemistry, hydrosphere and ocean dynamics, atmosphere and greenhouse effect, and biogeochemical cycles.

20%

Technological World

Engineering materials and constraints, technical drawing and projection views, mechanical links and degree of freedom, motion transmission and transformation systems.

How to Pass the QC Sec 4 Science & Tech Exam

What You Need to Know

  • Passing score: Counts for 50% of final course mark; 60% required for DES credit
  • Assessment: 3-hour ministerial theory examination (25 questions) covering Living World, Earth and Space, Material World, and Technological World; practical component is school-developed.
  • Time limit: 3 hours
  • Exam fee: Free for public/subsidized secondary school students in Quebec

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

QC Sec 4 Science & Tech Study Tips from Top Performers

1Practice multi-step calculations using proper formulas and unit conversions (e.g. converting kWh to Joules or g/L to ppm).
2Memorize periodic table trends, alkali/alkaline earth/halogen/noble gas family characteristics, and Rutherford-Bohr atomic structures.
3Master mechanical link characteristics: direct vs. indirect, rigid vs. flexible, removable vs. non-removable, complete vs. partial.
4Review ecological concepts such as trophic efficiency, biomass pyramids, primary/secondary succession, and bioaccumulation.

Frequently Asked Questions

What is the course code for the Quebec Secondary 4 Science exam?

The core Science and Technology ministerial exam course code is 055-410 (French sector) or 555-410 (English sector).

How much does the Épreuve Unique count towards the final grade?

The ministerial épreuve unique accounts for 50% of the student's final mark in Secondary 4 Science and Technology.

What four domains are evaluated on the exam?

The exam evaluates Material World (~35%), Living World (~25%), Earth and Space (~20%), and Technological World (~20%).

What types of calculations are required?

Students must solve calculations involving electrical circuits (Ohm's law V=IR, power P=VI, energy E=Pt), concentration (g/L, ppm, % m/V), stoichiometry (molar mass, mass conservation), and mechanical transformation ratios.

Are these practice questions in the official ministerial examination format?

No. OpenExamPrep publishes an English-language multiple-choice study adaptation aligned to MEQ program content and rubrics. It is not an official translation, format simulation, or substitute for the official reading, writing, oral, constructed-response, or performance components.