GSEB Class 10 Science Question Paper March 2025
The GSEB STD 10 Science March 2025 board paper is available in English and Hindi medium. Covers Physics, Chemistry, and Biology. Download and practice to score well.
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Paper Profile
Category / Board
GSEB
Level / Std
Std 10
Subject
Science
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Total Marks
0
Negative Marking
None โ
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MCQ and True/False questions are interactive. Other question types show the model answer directly.
While cooking, if the bottom of the Vessel is getting blackened on the outside, it means that.
Which of the following is an olfactory indicator?
1ฮผA = __________ A.
The lungs in human beings are a part of the system for
The crystalline lens of people at old age becomes milky and cloudy. This condition is called _______.
No matter how Far you stand From a mirror, your image appears erect. The mirror is likely to be
The earth's crust has only _______% carbon in the Form of minerals.
The SI unit of electric potential difference is named after the Scientist _______.
In anaerobic respiration by our muscle cells, the pyruvate is converted into _______.
______ animal can change sex.
The lens formula is _______.
______ is the Chemical Formula of Cinnabar.
Solder is an alloy of lead and tin.
A child who inherits a โYโ chromosome from the Father will be a girl.
The twinkling of a star is due to atmospheric refraction of starlight.
The concentration of hydronium ions (HโOโบ) increased when a solution of an acid is diluted.
Iodine is necessary For the Synthesis of which hormone in human body?
Thyroxine
If a โtrait Aโ exists in 10% of a population of an asexually, reproducing species and a โtrait Bโ exists in 60% of the same population, which trait is likely to have arisen earlier?
Trait B
In the dispersion of white light through a prism, Which coloured light bends the least?
Red
Define : Electric current.
Electric current is the flow of electric charge through a conductor.
Match the following:
| Column A | Column B |
|---|
โ Correct Match:
21-c, 22-a
Match the following:
| Column A | Column B |
|---|
โ Correct Match:
23-b, 24-a
A shiny brown coloured element โXโ on heating in air becomes black in colour. Name the element โXโ and the black coloured compound Formed.
Element X is Copper (Cu). The black coloured compound formed is Copper(II) oxide (CuO).
Give reason: Platinum, Gold and Silver are used to make jewellery.
Platinum, gold, and silver are used to make jewellery because they are lustrous, malleable, ductile, and chemically inert (do not corrode easily).
Explain nutrition in Amoeba.
Amoeba ingests food using pseudopodia (false feet) through a process called phagocytosis. The food is enclosed in a food vacuole where it is digested by enzymes, and the nutrients are absorbed.
Observe the following diagram. a) Name the type of reproduction b) Name the organism
Name any Four modes of reproduction used by single organisms.
Binary fission, Budding, Fragmentation, Spore formation.
What is called an unisexual Flower? Write its examples.
A unisexual flower is one that contains either male or female reproductive parts, but not both. Examples: Papaya, Watermelon.
Why does the Sky appear dark instead of blue to an astronaut?
The sky appears dark to an astronaut because there is no atmosphere in space to scatter sunlight, which causes the blue color seen on Earth.
A current of 0.5 A is drawn by a Filament of an electric bulb for 20 minutes. Find the amount of electric charge that Flows through the circuit.
Charge (Q) = Current (I) ร Time (t) = 0.5 A ร (20 ร 60) s = 600 C.
Use the data from the above table to answer the Following questions. a) Which among iron and mercury is a better conductor? b) Which material is the best conductor?
a) Iron is a better conductor than mercury. b) Silver is the best conductor.
Explain Solenoid.
A solenoid is a coil of wire that, when carrying an electric current, generates a magnetic field similar to that of a bar magnet. It is used in devices like electromagnets and inductors.
How can you help in reducing the problem of waste disposal? Give any two methods.
1. Recycling waste materials like paper, plastic, and metal. 2. Composting organic waste to reduce landfill use.
Classify the following ecosystems into natural ecosystem and artificial ecosystems. Forest, garden, aquarium, Sea
Natural ecosystems: Forest, Sea. Artificial ecosystems: Garden, Aquarium.
State the organs of human respiratory system.
Nose, Pharynx, Larynx, Trachea, Bronchi, Lungs, Alveoli.
Explain Flemingโs left-hand rule.
Flemingโs left-hand rule states that if the thumb, forefinger, and middle finger of the left hand are stretched mutually perpendicular, the forefinger points in the direction of the magnetic field, the middle finger in the direction of the current, and the thumb in the direction of the force acting on the conductor.
What is combination reaction? Explain with two examples.
A combination reaction is a reaction in which two or more substances combine to form a single product. Examples: 1. 2Hโ + Oโ โ 2HโO 2. CaO + COโ โ CaCOโ.
The electronic configuration of two elements X and Y are as follows: X = 2, 8, 1 Y = 2, 8, 7 a) Identify the metal and write its name b) Identify the nonmetal and Write its name. c) Which ionic compound is Formed by X and Y?
a) X is a metal: Sodium (Na). b) Y is a nonmetal: Chlorine (Cl). c) The ionic compound formed is Sodium chloride (NaCl).
Observe the test tubes A, B and C from the given Figure and answer the Following questions. a) In which test tube, the colour of iron nail will change? b) Name the Chemical reaction associated with it. c) Write the essential conditions required for the above chemical reaction.
Give an example of a metal which a) Melt if you keep it on your palm b) Can be easily cut with knife c) Are found in nature in the free state
a) Gallium or Cesium. b) Sodium or Potassium. c) Gold or Platinum.
Write a short note on neuron.
A neuron is a nerve cell that is the basic unit of the nervous system. It consists of a cell body, dendrites, and an axon. Dendrites receive signals from other neurons, and the axon transmits signals to other neurons or muscles.
What are the changes seen in girls at the time of puberty?
Changes include development of breasts, onset of menstruation, growth of pubic and underarm hair, widening of hips, and increase in height.
Differentiate between Male reproductive System and Female reproductive system.
Male reproductive system: Produces sperm, includes testes, vas deferens, and penis. Female reproductive system: Produces eggs, includes ovaries, fallopian tubes, uterus, and vagina. Females also support fetal development during pregnancy.
Name the type of mirror used in the following situations - a) Headlights of a car b) Side/rear-view mirror of a vehicle c) Solar Furnace
a) Concave mirror. b) Convex mirror. c) Concave mirror.
Explain the sign convention for refraction by spherical mirror.
The sign convention for spherical mirrors states that distances measured in the direction of incident light are positive, and those measured opposite to it are negative. The focal length of a concave mirror is negative, and that of a convex mirror is positive.
The potential difference between the terminals of an electric heater is $60\,\mathrm{V}$. When it draws a current of $4\,\mathrm{A}$ from the Source. What current will the heater draw if the potential difference is increased to $120\,\mathrm{V}$?
Using Ohm's Law, Resistance (R) = V/I = 60 V / 4 A = 15 ฮฉ. Current at 120 V = V/R = 120 V / 15 ฮฉ = 8 A.
Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9 respectively. Which solution is ______ a) neutral b) Strongly alkaline? c) Strongly acidic? d) Arrange the pH in increasing order of hydrogen-ion concentration.
a) Solution D (pH 7) is neutral. b) Solution C (pH 11) is strongly alkaline. c) Solution B (pH 1) is strongly acidic. d) Increasing order of hydrogen-ion concentration: 11, 9, 7, 4, 1.
How is plaster of Paris formed? Write an equation to show the reaction between plaster of Paris and Water? Write uses of plaster of Paris.
Plaster of Paris is formed by heating gypsum (CaSOโยท2HโO) to about 150ยฐC. Equation: CaSOโยทยฝHโO + 1ยฝHโO โ CaSOโยท2HโO. Uses: Making casts for broken bones, statues, and decorative items.
a) Differentiate between soap and detergent. b) Write the names and formula of Functional groups for the following compounds Propanol, Propanone
a) Soaps are sodium or potassium salts of fatty acids, while detergents are synthetic salts of sulphonic acids. Detergents work better in hard water. b) Propanol: Hydroxyl group (-OH). Propanone: Carbonyl group (C=O).
a) Write a Short note on Lymph. b) What are the components of the transport system in highly organised plants? Write their functions also.
a) Lymph is a colorless fluid containing white blood cells, which bathes tissues and drains through the lymphatic system into the bloodstream. It helps in immune response and fluid balance. b) Components: Xylem (transports water and minerals) and Phloem (transports food and nutrients).
a) What are the differences between autotrophic nutrition and heterotrophic nutrition? b) Draw neat and labelled structure of a nephron.
b) State the organs of excretory system in human being.
Kidneys, Ureters, Urinary bladder, Urethra.
Explain the differences between Myopia and Hypermetropia.
Myopia (near-sightedness) is a condition where distant objects appear blurred because the image is focused in front of the retina. Hypermetropia (far-sightedness) is a condition where nearby objects appear blurred because the image is focused behind the retina. Myopia is corrected with concave lenses, and hypermetropia with convex lenses.
a) List the properties of magnetic field lines. b) When does an electric short circuit occurs?
a) Properties: Magnetic field lines form closed loops, they never intersect, they emerge from the north pole and enter the south pole, and their density indicates the strength of the magnetic field. b) A short circuit occurs when a low-resistance path is created in a circuit, causing excessive current flow.
a) Write the Full forms For : CFC, UNEP. b) What is the role of decomposers in the ecosystem?
a) CFC: Chlorofluorocarbons, UNEP: United Nations Environment Programme. b) Decomposers break down dead organic matter, recycling nutrients back into the ecosystem and maintaining soil fertility.
Official Answer Key
All answers and explanations are shown below.
While cooking, if the bottom of the Vessel is getting blackened on the outside, it means that.
Which of the following is an olfactory indicator?
1ฮผA = __________ A.
The lungs in human beings are a part of the system for
The crystalline lens of people at old age becomes milky and cloudy. This condition is called _______.
No matter how Far you stand From a mirror, your image appears erect. The mirror is likely to be
The earth's crust has only _______% carbon in the Form of minerals.
The SI unit of electric potential difference is named after the Scientist _______.
In anaerobic respiration by our muscle cells, the pyruvate is converted into _______.
______ animal can change sex.
The lens formula is _______.
______ is the Chemical Formula of Cinnabar.
Solder is an alloy of lead and tin.
A child who inherits a โYโ chromosome from the Father will be a girl.
The twinkling of a star is due to atmospheric refraction of starlight.
The concentration of hydronium ions (HโOโบ) increased when a solution of an acid is diluted.
Iodine is necessary For the Synthesis of which hormone in human body?
Thyroxine
If a โtrait Aโ exists in 10% of a population of an asexually, reproducing species and a โtrait Bโ exists in 60% of the same population, which trait is likely to have arisen earlier?
Trait B
In the dispersion of white light through a prism, Which coloured light bends the least?
Red
Define : Electric current.
Electric current is the flow of electric charge through a conductor.
Match the following:
| Column A | Column B |
|---|
โ Correct Match:
21-c, 22-a
Match the following:
| Column A | Column B |
|---|
โ Correct Match:
23-b, 24-a
A shiny brown coloured element โXโ on heating in air becomes black in colour. Name the element โXโ and the black coloured compound Formed.
Element X is Copper (Cu). The black coloured compound formed is Copper(II) oxide (CuO).
Give reason: Platinum, Gold and Silver are used to make jewellery.
Platinum, gold, and silver are used to make jewellery because they are lustrous, malleable, ductile, and chemically inert (do not corrode easily).
Explain nutrition in Amoeba.
Amoeba ingests food using pseudopodia (false feet) through a process called phagocytosis. The food is enclosed in a food vacuole where it is digested by enzymes, and the nutrients are absorbed.
Observe the following diagram. a) Name the type of reproduction b) Name the organism
Name any Four modes of reproduction used by single organisms.
Binary fission, Budding, Fragmentation, Spore formation.
What is called an unisexual Flower? Write its examples.
A unisexual flower is one that contains either male or female reproductive parts, but not both. Examples: Papaya, Watermelon.
Why does the Sky appear dark instead of blue to an astronaut?
The sky appears dark to an astronaut because there is no atmosphere in space to scatter sunlight, which causes the blue color seen on Earth.
A current of 0.5 A is drawn by a Filament of an electric bulb for 20 minutes. Find the amount of electric charge that Flows through the circuit.
Charge (Q) = Current (I) ร Time (t) = 0.5 A ร (20 ร 60) s = 600 C.
Use the data from the above table to answer the Following questions. a) Which among iron and mercury is a better conductor? b) Which material is the best conductor?
a) Iron is a better conductor than mercury. b) Silver is the best conductor.
Explain Solenoid.
A solenoid is a coil of wire that, when carrying an electric current, generates a magnetic field similar to that of a bar magnet. It is used in devices like electromagnets and inductors.
How can you help in reducing the problem of waste disposal? Give any two methods.
1. Recycling waste materials like paper, plastic, and metal. 2. Composting organic waste to reduce landfill use.
Classify the following ecosystems into natural ecosystem and artificial ecosystems. Forest, garden, aquarium, Sea
Natural ecosystems: Forest, Sea. Artificial ecosystems: Garden, Aquarium.
State the organs of human respiratory system.
Nose, Pharynx, Larynx, Trachea, Bronchi, Lungs, Alveoli.
Explain Flemingโs left-hand rule.
Flemingโs left-hand rule states that if the thumb, forefinger, and middle finger of the left hand are stretched mutually perpendicular, the forefinger points in the direction of the magnetic field, the middle finger in the direction of the current, and the thumb in the direction of the force acting on the conductor.
What is combination reaction? Explain with two examples.
A combination reaction is a reaction in which two or more substances combine to form a single product. Examples: 1. 2Hโ + Oโ โ 2HโO 2. CaO + COโ โ CaCOโ.
The electronic configuration of two elements X and Y are as follows: X = 2, 8, 1 Y = 2, 8, 7 a) Identify the metal and write its name b) Identify the nonmetal and Write its name. c) Which ionic compound is Formed by X and Y?
a) X is a metal: Sodium (Na). b) Y is a nonmetal: Chlorine (Cl). c) The ionic compound formed is Sodium chloride (NaCl).
Observe the test tubes A, B and C from the given Figure and answer the Following questions. a) In which test tube, the colour of iron nail will change? b) Name the Chemical reaction associated with it. c) Write the essential conditions required for the above chemical reaction.
Give an example of a metal which a) Melt if you keep it on your palm b) Can be easily cut with knife c) Are found in nature in the free state
a) Gallium or Cesium. b) Sodium or Potassium. c) Gold or Platinum.
Write a short note on neuron.
A neuron is a nerve cell that is the basic unit of the nervous system. It consists of a cell body, dendrites, and an axon. Dendrites receive signals from other neurons, and the axon transmits signals to other neurons or muscles.
What are the changes seen in girls at the time of puberty?
Changes include development of breasts, onset of menstruation, growth of pubic and underarm hair, widening of hips, and increase in height.
Differentiate between Male reproductive System and Female reproductive system.
Male reproductive system: Produces sperm, includes testes, vas deferens, and penis. Female reproductive system: Produces eggs, includes ovaries, fallopian tubes, uterus, and vagina. Females also support fetal development during pregnancy.
Name the type of mirror used in the following situations - a) Headlights of a car b) Side/rear-view mirror of a vehicle c) Solar Furnace
a) Concave mirror. b) Convex mirror. c) Concave mirror.
Explain the sign convention for refraction by spherical mirror.
The sign convention for spherical mirrors states that distances measured in the direction of incident light are positive, and those measured opposite to it are negative. The focal length of a concave mirror is negative, and that of a convex mirror is positive.
The potential difference between the terminals of an electric heater is $60\,\mathrm{V}$. When it draws a current of $4\,\mathrm{A}$ from the Source. What current will the heater draw if the potential difference is increased to $120\,\mathrm{V}$?
Using Ohm's Law, Resistance (R) = V/I = 60 V / 4 A = 15 ฮฉ. Current at 120 V = V/R = 120 V / 15 ฮฉ = 8 A.
Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9 respectively. Which solution is ______ a) neutral b) Strongly alkaline? c) Strongly acidic? d) Arrange the pH in increasing order of hydrogen-ion concentration.
a) Solution D (pH 7) is neutral. b) Solution C (pH 11) is strongly alkaline. c) Solution B (pH 1) is strongly acidic. d) Increasing order of hydrogen-ion concentration: 11, 9, 7, 4, 1.
How is plaster of Paris formed? Write an equation to show the reaction between plaster of Paris and Water? Write uses of plaster of Paris.
Plaster of Paris is formed by heating gypsum (CaSOโยท2HโO) to about 150ยฐC. Equation: CaSOโยทยฝHโO + 1ยฝHโO โ CaSOโยท2HโO. Uses: Making casts for broken bones, statues, and decorative items.
a) Differentiate between soap and detergent. b) Write the names and formula of Functional groups for the following compounds Propanol, Propanone
a) Soaps are sodium or potassium salts of fatty acids, while detergents are synthetic salts of sulphonic acids. Detergents work better in hard water. b) Propanol: Hydroxyl group (-OH). Propanone: Carbonyl group (C=O).
a) Write a Short note on Lymph. b) What are the components of the transport system in highly organised plants? Write their functions also.
a) Lymph is a colorless fluid containing white blood cells, which bathes tissues and drains through the lymphatic system into the bloodstream. It helps in immune response and fluid balance. b) Components: Xylem (transports water and minerals) and Phloem (transports food and nutrients).
a) What are the differences between autotrophic nutrition and heterotrophic nutrition? b) Draw neat and labelled structure of a nephron.
b) State the organs of excretory system in human being.
Kidneys, Ureters, Urinary bladder, Urethra.
Explain the differences between Myopia and Hypermetropia.
Myopia (near-sightedness) is a condition where distant objects appear blurred because the image is focused in front of the retina. Hypermetropia (far-sightedness) is a condition where nearby objects appear blurred because the image is focused behind the retina. Myopia is corrected with concave lenses, and hypermetropia with convex lenses.
a) List the properties of magnetic field lines. b) When does an electric short circuit occurs?
a) Properties: Magnetic field lines form closed loops, they never intersect, they emerge from the north pole and enter the south pole, and their density indicates the strength of the magnetic field. b) A short circuit occurs when a low-resistance path is created in a circuit, causing excessive current flow.
a) Write the Full forms For : CFC, UNEP. b) What is the role of decomposers in the ecosystem?
a) CFC: Chlorofluorocarbons, UNEP: United Nations Environment Programme. b) Decomposers break down dead organic matter, recycling nutrients back into the ecosystem and maintaining soil fertility.