PSEB Class 10 Science Guess Paper 2025 — Model, Sample & Previous Year Papers (PDF)
Table of Contents
Introduction
Welcome — this page contains the best PSEB Class 10 Science Guess Paper 2025, model papers, and previous year question papers specially prepared for Punjab Board students. Use the model paper below to practice 1-mark, 2-mark, 3-mark and long-answer questions. Keywords like "PSEB 10th Science Model Paper 2025" and "PSEB Class 10 Science Important Questions PDF" are integrated across this article for improved search visibility.
Download PDF / Solved Papers
Click below to download a ready-to-print PDF containing the full PSEB Class 10 Science Guess Paper and solved answers.
Download Guess Paper PDFPSEB Class 10 Science Exam Blueprint (Quick)
| Parameter | Details |
|---|---|
| Class / Board | PSEB Class 10 (Punjab Board) |
| Total Marks | 80 (Theory) |
| Time | 3 Hours |
| Question Types | 1-mark MCQs, 2-mark short answers, 3-mark medium answers, 5-mark long answers |
| Important | Chapter-wise practice, previous year papers & model test papers |
Question Paper — Model / Previous Year (PSEB Class 10 Science)
[PASTE YOUR QUESTION PAPER HERE]
Chapter-wise Important Questions & MCQs
Use these Class 10 Science important questions to prepare smartly. Below are chapter-wise expected questions and top MCQs that frequently appear in PSEB papers.
Important Chapters
- Chemical Reactions & Equations — Important 1-mark and 2-mark questions
- Light — Ray Optics & Lenses (1, 2, 3-mark questions)
- Electricity & Circuits — Numericals and Theory
- Life Processes — Human Biology long questions
- Ecology & Environment — Short notes and MCQs
Top MCQs (Practice)
- MCQ on lens magnification and types
- MCQ on electrolysis and gases released at electrodes
- MCQ on scattering vs dispersion of light
- MCQ on life processes and organs
Exam Preparation Tips for PSEB Class 10 Science
- Practice previous year papers and model test papers under timed conditions.
- Focus on 1-mark & 2-mark important questions — they decide quick scoring.
- Make short formula sheets for optics, electricity and chemistry reactions.
- Revise diagrams (labelled) for human systems and circuits.
- Download the PSEB Class 10 Science Guess Paper PDF and solve it twice — once for speed and once for accuracy.
Frequently Asked Questions (FAQs)
Q: Where can I download PSEB Class 10 Science previous year papers?
A: Use the download button above — PDF with previous year and model papers is provided. Also check the PSEB official site.
Q: Does this page include solved model papers?
A: Yes — solved answers and stepwise solutions are included in the downloadable PDF.
SCIENCE (Vigyan)
Class – 10th | Session: 2025-26 (Guess Paper)
Time: 3 Hours | Written Marks: 80
General Instructions:
- The question paper consists of 30 questions in total.
- Question No. 1 has 16 parts, each carrying 1 mark.
- Questions No. 2 to 18 are 2-mark questions. Attempt any 14 questions. The answer should be between 30–40 words.
- Questions No. 19 to 27 are 3-mark questions. Attempt any 7 questions. The answer should be between 30–50 words.
- Questions No. 28 to 30 are 5-mark questions. Internal choice is provided in these questions.
Question 1. Multiple Choice Questions (16 Marks)
- What color layer appears on copper when it corrodes?
(A) Yellow(B) Green(C) Black(D) Grey
- Which acid is present in an ant sting?
(A) Lactic Acid(B) Methanoic Acid(C) Ethanoic Acid(D) Propanoic Acid
- What type of solution is a solution with a pH of 14?
(A) Strong Acidic(B) Weak Basic(C) Strong Basic(D) Weak Acidic
- Choose the non-metal that cannot be cut with a knife.
(A) Sodium(B) Potassium(C) Lithium(D) Iodine
- Which type of bond is present between oxygen atoms in an oxygen molecule ($\text{O}_2$)?
(A) Single(B) Double(C) Triple(D) Quadruple
- The kidneys in humans are part of which system?
(A) Nutrition(B) Respiration(C) Excretion(D) Transportation
- The cramp in our muscles due to sudden activity is caused by the accumulation of:
(A) Lactic Acid(B) Lactose(C) Lymph(D) Acetic Acid
- The main thinking part of the brain is found in which part?
(A) Forebrain(B) Midbrain(C) Hindbrain(D) Spinal cord
- Which of the following organisms shows the process of budding?
(A) Planaria(B) Hydra(C) Plasmodium(D) Spirogyra
- If an object is placed at the center of curvature ($C$) in front of a concave mirror, what will be the nature of the image?
(A) Real and erect(B) Real and inverted(C) Virtual and erect(D) Virtual and inverted
- What is the SI unit of power of a lens?
(A) Meter(B) Diopter ($\text{m}^{-1}$)(C) Kilometer(D) Millimeter
- A normal human eye can clearly see objects placed up to what distance?
(A) 22 cm to $\infty$(B) 26 cm to $\infty$(C) 25 cm to $\infty$(D) 20 cm to $\infty$
- In which of the following media does light not scatter?
(A) Blood(B) Saltwater Solution(C) Milk(D) Muddy water
- Which of the following symbols represents an open plug key or switch?
(A) (•)(B) (•)(C) —(D) @
- What percentage of solar energy do plant leaves convert into food energy?
(A) 0.1%(B) 0.01%(C) 0.0001%(D) 1%
- Which of the following is not decomposed by bacteria?
(A) Paper(B) Plastic(C) Cardboard(D) Wood
Questions 2-18. Short Answer Questions (Attempt any 14) (14 x 2 = 28 Marks)
- In a balanced chemical equation, what do the symbols (g), (l), (aq), and (s) represent?
- Why are curd and sour substances not kept in brass and copper vessels?
- Why does the behavior of acids not become acidic in the absence of water?
- Which gas is produced as a result of the reaction of an acid with a metal? Explain with an example.
- How would you distinguish between Ethanol and Ethanoic Acid based on physical properties?
- What criteria are used to determine if an object is alive?
- Why is the use of iodized salt advised?
- How does an embryo receive nourishment inside the mother's body?
- Find the focal length of a lens whose power is -2.0 D.
- Why do stars twinkle?
- What is meant by the dispersion of light? Which color bends the most and which bends the least?
- Why does the cord (connecting wire) of an electric heater not glow when current passes through it, but its heating coil does?
- List the properties of magnetic field lines.
- What would happen if we killed all the organisms at one trophic level?
- What problems are created by the non-biodegradable waste we produce?
- An object 2.0 cm long is placed perpendicular to the principal axis of a lens with a focal length of 10 cm. The object distance from the lens is 15 cm. Find the nature and position of the image.
- What is meant by exothermic and endothermic reactions? Give an example.
Questions 19-27. Short Answer Questions (Attempt any 7) (7 x 3 = 21 Marks)
- Write about the changes in color and smell that occur when ferrous sulfate crystals are heated in a lab. What type of chemical reaction is this? Write the equation along with it.
- Explain the mechanism of cleaning by soap.
- Explain the double circulation of blood in the human circulatory system. Why is it necessary?
- How does phototropism occur in plants?
- How is the sex of a child determined in humans?
- What is the refractive index? Why is kerosene denser than water?
- What precautions would you take to prevent overloading in a domestic electrical circuit?
- Explain the formation of precipitate when hard water is mixed with soap.
- Draw a labeled diagram of the human digestive system. [Image of Labeled Human Digestive System]
Questions 28-30. Long Answer Questions (3 x 5 = 15 Marks)
- Draw a labeled longitudinal section of a flower. [Image of Labeled Longitudinal Section of a Flower] OR (A) Why does menstruation occur? (B) How is the process of pollination different from fertilization?
- (A) Write two methods to prevent iron from rusting. (B) During the process of extraction (of metals), why are carbonate and sulfide ores usually converted into oxides? Justify with an example. OR (A) What are Amphoteric Oxides? Write two examples. (B) Write the electron dot structure of Sodium and Magnesium.
- A 12V battery is connected across the ends of an unknown resistor, and a current of 2.5 mA flows through the circuit. Calculate the resistance of the resistor. OR (A) How would you connect three resistors of $6\Omega$ resistance each so that the total resistance of the combination is $4\Omega$?
