Class 10 Science Question Paper-2018 by Pavan | Practice Test to Test Your Knowledge
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  3. Class 10 Science Question Paper-2018
Class 10 Science Question Paper-2018

Class 10 Science Question Paper-2018

This mock test includes actual CBSE Class 10 Science board exam questions from the year 2018, helping students understand exam trends and practice real paper formats.

2025-07-28
Pavan Pavan
CBSE Class 10 Science 2018 Grade 10

Duration

30 min

Questions

15

Marking

Negative

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Questions Preview

What is the main function of the thyroid gland in the human body?

A
Regulation of metabolism
B
Regulation of blood sugar levels
C
Regulation of growth hormones
D
Regulation of body temperature

What is the function of the stomach in the human digestive system?

A
Absorption of nutrients
B
Secretion of bile
C
Production of digestive enzymes
D
Mechanical and chemical digestion of food

Which gas is evolved when a piece of zinc metal reacts with dilute hydrochloric acid?

A
Hydrogen
B
Oxygen
C
Carbon dioxide
D
Nitrogen

What is the process of converting solid to liquid called?

A
Evaporation
B
Condensation
C
Freezing
D
Melting

Which of the following is an example of a chemical change?

A
Dissolving sugar in water
B
Melting of ice
C
Burning of wood
D
Cutting a paper

What is the role of the kidney in the excretory system?

A
It filters waste from the blood.
B
It pumps blood throughout the body.
C
It stores urine.
D
It produces red blood cells.

Which element has seven electrons in its outermost shell?

A
P
B
Q
C
R
D
T

What is the function of the seminal vesicle in the male reproductive system?

A
It stores sperm.
B
It produces seminal fluid.
C
It protects sperm from acidic conditions.
D
It secretes testosterone.

Which of the following is true about asexual reproduction?

A
It involves two parents.
B
It produces genetically identical offspring.
C
It requires fertilization.
D
It occurs only in plants.

What does the term 'resistance' refer to in electrical circuits?

A
The opposition to the flow of current.
B
The amount of current flowing through the circuit.
C
The power used by the circuit.
D
The force that drives the electrons.

Which of the following best describes the process of photosynthesis?

A
Plants absorb oxygen and release carbon dioxide.
B
Plants absorb carbon dioxide and release oxygen.
C
Plants absorb nutrients from the soil.
D
Plants use sunlight to absorb water.

Which gas is primarily responsible for global warming?

A
Oxygen
B
Carbon dioxide
C
Nitrogen
D
Methane

What is the significance of the ozone layer in the atmosphere?

A
It blocks harmful UV radiation from the sun.
B
It regulates the Earth's temperature.
C
It produces oxygen for breathing.
D
It protects from all forms of radiation.

What is the basic unit of heredity?

A
Gene
B
Chromosome
C
DNA
D
Nucleus

Which of the following is a function of the pancreas?

A
It produces insulin.
B
It secretes digestive enzymes.
C
It produces bile.
D
It stores glycogen.