C
CraftExam

CBSE Class 9 Science Sample Paper

Marks:
40
Time:
1½ Hours
Questions:
19
Chapters:
13
Session:
2026-27
Class_9_Science_Sample_Paper_CraftExam.pdfA4 · Set A

Academic Session 2026-27

SAMPLE PAPER

SCIENCE

Class IX

Time Allowed1½ HoursMaximum Marks40SetA

Assessment: CBSE-Aligned School Assessment

Marks Distribution

SectionQuestion TypeMarks
AMCQs (10×1)10
BShort Answer (6×3)18
CLong Answer (2×5)10
DCase Study (2×1)2

General Instructions

  1. 1.This question paper has 4 sections.
  2. 2.Marks are shown beside each question.
  3. 3.Read each section instruction carefully.
  4. 4.Attempt only one alternative where internal choice is given.

SECTION A — Objective Type Questions (1×10=10)

Q1 to Q10 are Multiple Choice Questions. Choose the correct option.

Q1. A hot, concentrated solution of alum is kept undisturbed. After some time, shiny crystals appear at the bottom. What mainly caused the crystals to separate?
(1)
  1. (a)The solution became less able to hold dissolved alum on cooling
  2. (b)The alum changed into an insoluble substance during heating
  3. (c)The water became a new solid and pushed alum out
  4. (d)The dissolved alum settled because it was heavier than water
Q2. A fresh plant cell is placed in pure water. It swells but does not burst easily. Which explanation best connects this observation with the cell wall?
(1)
  1. (a)The cell wall provides rigid support and resists excessive expansion
  2. (b)The cell wall pumps extra water out of the cell using energy
  3. (c)The cell wall blocks all water from entering the cell
  4. (d)The cell wall dissolves slightly to make more space for water
Q3. A blade tip of a ceiling fan moves around a circle at steady speed. After half a revolution, what can be said about its speed and velocity?
(1)
  1. (a)Both speed and velocity remain exactly the same
  2. (b)Speed remains the same, but velocity changes because direction changes
  3. (c)Velocity remains the same, but speed changes because position changes
  4. (d)Both speed and velocity become zero for an instant
Q4. A box is pulled north with 25 N and south with 75 N. What should be concluded?
(1)
  1. (a)The net force is 100 N north
  2. (b)The net force is 50 N south
  3. (c)The net force is 50 N north
  4. (d)The forces are balanced because both directions are present
Q5. A forested hill is cleared and replaced by concrete buildings. During heavy rain, nearby drains overflow more often. Which explanation best links the change to the water cycle?
(1)
  1. (a)Less vegetation means less water absorption and more surface runoff
  2. (b)Concrete increases condensation directly inside clouds
  3. (c)Tree removal stops all rainfall from forming anywhere nearby
  4. (d)Buildings convert rainwater into carbon dioxide during storms
Q6. A student groups a whale with fish because both live in water and have a streamlined body. Which correction best shows the need for proper classification?
(1)
  1. (a)Whales should be grouped using important features such as breathing, reproduction, and body organisation, not habitat alone.
  2. (b)Whales should be grouped with fish because living in the same place is the most reliable feature.
  3. (c)Whales should be grouped separately from all animals because their size is unusually large.
  4. (d)Whales should be grouped by colour first because visible features are always the most scientific basis.
Q7. A worksheet gives the wavelength of a sound wave as 50 cm and its frequency as 680 Hz. What speed should be obtained after the correct unit conversion?
(1)
  1. (a)340 m/s
  2. (b)34000 m/s
  3. (c)13.6 m/s
  4. (d)730 m/s
Q8. A class compares two pure samples of sodium chloride. One sample has 23 g sodium and 35.5 g chlorine. A larger sample has 46 g sodium and 71 g chlorine. Which calculation correctly checks the law of constant proportions?
(1)
  1. (a)Compare 23 with 46 only, because sodium decides whether the compound is the same.
  2. (b)Compare 35.5 with 71 only, because chlorine is the heavier element.
  3. (c)Reduce sodium:chlorine in both samples and check that both give 23:35.5 by mass.
  4. (d)Add the masses in each sample and check that the totals are equal.
Q9. A student writes the electron distribution of neon, atomic number 10, as 2, 6, 2. Which rule has been ignored?
(1)
  1. (a)The L shell should be filled up to 8 before electrons enter the next shell.
  2. (b)The K shell should contain 8 electrons before the L shell starts filling.
  3. (c)The M shell must always contain 2 electrons in a stable atom.
  4. (d)Electrons should first be placed in the shell farthest from the nucleus.
Q10. Two identical balls are released from the same height. Ball A falls through air normally, while Ball B falls in a tube where air resistance is negligible. Which comparison is correct just before reaching the ground?
(1)
  1. (a)Ball A and Ball B have the same kinetic energy because they started from the same height.
  2. (b)Ball A has less mechanical energy than Ball B because some energy is transferred to the surroundings.
  3. (c)Ball A has more kinetic energy because air pushes it downward during the fall.
  4. (d)Ball B has less kinetic energy because no air is present to help it move.

SECTION B — Short Answer Questions (3×6=18)

Q11 to Q16 are Short Answer Questions.

Q11. During a seed germination activity, Ravi writes, 'The seed grew well because it was strong.' Improve this observation by writing a proper scientific record in three lines.
(3)
Q12. In a simple classroom model, a teacher uses a door, a rotating pencil fixed in a clay base, and a ball placed in a cup. Which joint type does each model show? Explain the movement shown by each.
(3)
Q13. Why is a population produced mainly by sexual reproduction more likely to adjust to a sudden environmental change than a population produced mainly by asexual reproduction?
(3)
Q14. Riya says, 'If the velocity-time graph is horizontal, the object is not moving.' Is she correct? Justify your answer with an example.
(3)
Q15. In a school laboratory discussion, a student claims that any cell taken from the cheek lining can be used to grow a full organism. Explain why this claim is not correct.
(3)
Q16. A laboratory chart shows two atoms: Atom P has 8 protons and 8 neutrons, while Atom Q has 8 protons and 10 neutrons. Calculate the mass number of each and state what changes between P and Q.
(3)

SECTION C — Long Answer Questions (5×2=10)

Q17 to Q18 are Long Answer Questions.

Q17. During a sports practice, two students climb the same staircase. Ravi weighs 500 N and climbs a vertical height of 4 m in 10 s. Salma weighs 400 N and climbs the same height in 6 s. Calculate the power developed by each and decide who is more powerful during the climb.
(5)
Q18. Design a simple experiment to demonstrate inertia of rest using a coin, a card, and a glass. Write the materials, steps, observation, and explanation based on Newton's first law.
(5)

OR

Q18. Describe an experiment-style observation to distinguish bread mould from a protist seen in pond water. Include the material observed, two visible features, and the final classification.
(5)

SECTION D — Case-Based Questions (1×2=2)

Q19 is a case-based question. Read the case carefully and answer the sub-questions.

Q19

In a Class 9 science lab in Pune, students used a frequency app connected to a small speaker for a demonstration. The teacher played tones of 30 Hz, 2,000 Hz and 24,000 Hz and asked the class to record what a normal human ear should detect. Some students wrote that 24,000 Hz must be heard because it is a stronger number. The teacher reminded them to compare every value with the limits of human hearing.
(i) From the passage, which frequency is ultrasound?
(1)
(ii) Which of the given frequencies should a normal human ear hear most clearly: 30 Hz, 2,000 Hz or 24,000 Hz?
(1)

End of Question Paper