10th Science Quarterly Exam Model Question Paper 2025

The best way to prepare for your mid-year boards check is to practice with papers modeled after the latest testing standards. This Class 10 Science Quarterly Exam Model Question Paper 2025 is designed to mimic the exact structural blueprint and weightage of the 2025 mid-year evaluations. Covering the first half of the syllabus across physics, chemistry, and biology, this full-length model test features high-priority objectives, descriptive shorts, and key diagram questions to help you grade your current preparation level accurately.

SCIENCE - 10

QUARTERLY EXAM - 2, 4, 7 MARKS

2 MARKS QUESTIONS :

LN-1

1. Define inertia. Give its classification.

2. Classify the types of force based on their application.

3. If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction of action of the resultant force

4. Differentiate mass and weight.

5. Define moment of a couple.

6. State the principle of moments.

7. State Newton's second law.

8. Why a spanner with a long handle is preferred to tighten screws in heavy vehicles?

9. While catching a cricket ball the fielder lowers his hands backwards. Why?

10. How does an astronaut float in a space shuttle?

LN-2

1. What is refractive index?

2. State Snell's law.

3. Draw a ray diagram to show the image formed by a convex lens when the object is placed between F and 2F.

4. Define dispersion of light

5. State Rayleigh's law of scattering

6. Differentiate convex lens and concave lens.

7. What is power of accommodation of eye?

8. What are the causes of 'Myopia'?

9. Why does the sky appear in blue colour?

10. Why are traffic signals red in colour?

LN-3

1. Define one calorie.

2. State Boyle's law

3. State the law of volume

4. Distinguish between ideal gas and real gas.

LN-4

1. Define the unit of current

2. Why is tungsten metal used in bulbs, but not in fuse wires?

3. Name any two devices, which are working on the heating effect of the electric current.

LN-7

1. Write the different types of isotopes of oxygen and its percentage abundance.

2. Define: Atomicity

3. Give any two examples for heterodiatomic molecules.

4. Calculate the number of moles in:
i) 27g of Al
ii) 1.51 × 10²³ molecules of NH₄Cl

LN-8

1. A is a reddish brown metal, which combines with O₂ at < 1370 K gives B, a black coloured compound. At a temperature > 1370 K, A gives C which is red in colour. Find A, B and C with reaction.

2. A is a silvery white metal. A combines with O₂ to form B at 800°C, the alloy of A is used in making the aircraft. Find A and B

3. What is rust? Give the equation for formation of rust.

4. State two conditions necessary for rusting of iron.

5. Name the acid that renders aluminium passive. Why?

LN-9

1. Define the term: Solution

2. What is meant by binary solution

3. What is aqueous and non-aqueous solution? Give an example.

4. Define Volume percentage

5. The aquatic animals live more in cold region. Why?

6. Define Hydrated salt.

LN-12

1. Write a short note on mesophyll.

2. Draw and label the structure of oxysomes.

3. Name the three basic tissues system in flowering plants.

4. What is respiratory quotient?

5. Write the reaction for photosynthesis?

LN-13

1. How does leech respire?

2. Write the dental formula of rabbit.

3. How is diastema formed in rabbit?

4. Why is the teeth of rabbit called heterodont?

5. How does leech suck blood from the host?

LN-14

1. What are heart sounds? How are they produced?

2. What is the importance of valves in the heart?

3. Who discovered Rh factor? Why was it named so?

4. How are arteries and veins structurally different from one another?

5. Why is the Sinoatrial node called the pacemaker of heart?

LN-15

1. Name the parts of the hind brain.

2. What are the structures involved in the protection of brain?

3. Define reflex arc.

LN-16

1. What are synthetic auxins? Give examples.

2. What is bolting? How can it be induced artificially?

3. What are chemical messengers?

4. Write the differences between endocrine and exocrine gland.

5. Why are thyroid hormones referred as personality hormone?

LN-17

1. Define triple fusion.

2. Write the characteristics of insect pollinated flowers.

3. Name the secondary sex organs in male

4. What is colostrum? How is milk production hormonally regulated?

5. Identify the parts A, B, C and D

LN-18

1. Why did Mendel select pea plant for his experiments?

2. What do you understand by the term phenotype and genotype?

3. What are allosomes?

4. What are Okazaki fragments?

4 & 7 MARKS QUESTIONS:

LN-1

1. What are the types of inertia? Give an example for each type.

2. State Newton's laws of motion?

3. Deduce the equation of a force using Newton's second law of motion.

4. State and prove the law of conservation of linear momentum.

5. Describe rocket propulsion.

6. State the universal law of gravitation and derive its mathematical expression

7. Give the applications of universal law of gravitation.

LN-2

1. List any five properties of light

2. Explain the rules for obtaining images formed by a convex lens with the help of ray diagram.

3. Differentiate the eye defects: Myopia and Hypermetropia

4. Explain the construction and working of a 'Compound Microscope'.

LN-3

1. Derive the ideal gas equation.

2. Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.

LN-4

1.
a) What are the advantages of LED TV over the normal TV?
b) List the merits of LED bulb.

2. With the help of a circuit diagram derive the formula for the resultant resistance of three resistances connected: a) in series and b) in parallel

3.
a) What is meant by electric current?
b) Name and define its unit.
c) Which instrument is used to measure the electric current? How should it be connected in a circuit?

4.
a) State Joule's law of heating.
b) An alloy of nickel and chromium is used as the heating element. Why?
c) How does a fuse wire protect electrical appliances?

LN-7

1. Give the salient features of "Modern atomic theory".

2. Derive the relationship between Relative Molecular mass and Vapour density.

LN-8

1. Explain smelting process.

2. 'A' is a blue coloured crystalline salt. On heating it loses blue colour and to give 'B'. When water is added, 'B' gives back to 'A'. Identify A and B, write the equation.

LN-9

1. Write notes on:
i) saturated solution
ii) unsaturated solution

2. Write notes on various factors affecting solubility.

3.
a) What happens when MgSO₄·7H₂O is heated? Write the appropriate equation
b) Define solubility

4. In what way hygroscopic substances differ from deliquescent substances.

5. A solution is prepared by dissolving 45 g of sugar in 180 g of water. Calculate the mass percentage of solute.

6. 3.5 litres of ethanol is present in 15 litres of aqueous solution of ethanol. Calculate volume percent of ethanol solution.

7. A solution was prepared by dissolving 25 g of sugar in 100 g of water. Calculate the mass percentage of solute.

8. A solution is made from 35 ml of Methanol and 65 ml of water. Calculate the volume percentage.

LN-12

1. Differentiate the following:
a) Monocot root and Dicot root
b) Aerobic and Anaerobic respiration

LN-13

1. Why are the rings of cartilages found in trachea of rabbit?

2. List out the parasitic adaptations in leech.

LN-14

1. Differentiate between systole and diastole. Explain the conduction of heart beat.

2. Enumerate the functions of blood.

3. What is transpiration? Give the importance of transpiration

LN-15

1. Voluntary and involuntary actions.

2. Medullated and non-medullated nerve fibre.

3. With a neat labelled diagram explain the structure of a neuron.

4. Illustrate the structure and functions of brain.

5. Classify neurons based on its structure.

LN-16

1.
(a) Name the gaseous plant hormone. Describe its three different actions in plants.
(b) Which hormone is known as stress hormone in plants ? Why?

2. Write the physiological effects of gibberellins.

LN-17

1. Write the events involved in the sexual reproduction of a flowering plant.
a. Discuss the first event and write the types.
b. Mention the advantages and the disadvantages of that event.

2. With a neat labelled diagram describe the parts of a typical angiospermic ovule.

3. What are the phases of menstrual cycle? Indicate the changes in the ovary and uterus

LN-18

1. Explain the structure of a chromosome.

2. Label the parts of the DNA in the diagram given below. Explain the structure briefly.

[Diagram: Simplified double-helical / sugar-phosphate backbone with nucleotide base pairing]

3. How is the structure of DNA organised? What is the biological significance of DNA?