Half Yearly Exam 2025 – Hello students, if you’re searching for the Class 10th Science Half Yearly Paper 2025, you’ve come to the right place. Here, we’ll tell you how your Class 10th Science Half Yearly Paper 2025 will look and which questions you need to memorize. So, dear students, if you’re also in Class 10, be sure to read this article carefully –
Class 10th Science Half Yearly Paper 2025-26 Model Paper
Half-Yearly Exam – 2025
Class – 10th
Subject – Science
Time – 03:00 hours.                             Marks – 75
Instructions: All questions are compulsory.
Answer the questions as per the instructions.
Questions 1 to 4 are objective questions, carrying 1 × 32 marks.
Questions 5 to 14 are worth 2 marks each, with a word limit of 30 words.
Questions 15 to 18 are worth 3 marks each, with a word limit of 75 words.
Questions 19 to 22 are worth 4 marks each, with a word limit of 120 words.
Question 1. Choose the correct option and write it –
The pores found on the surface of a leaf are –
Stomata
Alveoli
Nephron
Pore
The main thinking part of the brain is –
Forebrain
Hindbrain
Spinal cord
None of the above
The space between two nerve cells is called –
Dendron
Synapse
Exon
Impulse
In which cell are genetic signals contained –
In DNA
In RNA
In cytoplasm
In ribosome
Color separation occurs –
By a mirror
By a prism
By a lens
By a rectangular piece of glass
The radius of curvature of a plane mirror is –
a. At infinity
b. At the center of curvature
c. At the focus
d. None of these
Answer: 1. a. Concentrated aqua regia, 2. c. Sodium hydrogen chloride, 3. a. stomata, 4. a. forebrain, 5. b. synapse, 6. a. in DNA, 7. b. prism, 8. a. at infinity
Question 2: Fill in the blanks:
The fetus receives nutrition from the mother’s blood through a structure called . The is responsible for oxygen transport in the human body.
The cause of farsightedness is the __ of the eyeball.
The common name for sodium hydrogen carbonate is _.
Metallic oxides are __ in nature.
A homogeneous mixture of two or more metals is called _. It is said that
Alloys are used for welding electrical wires together.
Answers: 1. Placenta, 2. Blood, 3. Small, 4. Baking soda, 5. Acid, 6. Alloy, 7. Solder
Question 4: Write the answer in one word or a sentence:
Except for which metal, all other metals are found in the solid state at room temperature.
What is the black layer on silver jewelry?
Write the full name of DNA.
Which hormone is responsible for sperm production in humans?
Write the mirror formula.
What is the functional unit of human excretion?
Which part of the heart pumps blood to various parts of the body?
Select true/false:
(i) Heat is absorbed in exothermic chemical reactions.
(ii) CH3OH is a base because it contains OH.
(iii) Metal oxides are usually basic in nature.
(iv) R-CHO is the general formula for an aldehyde (alkenal).
(v) The left atrium receives oxygenated blood from various parts of the body.
(vi) The thinking part of the brain is the hindbrain.
Answer: (i) False, (ii) False, (iii) True, (iv) True, (v) False, (vi) False
Question 5: What is meant by reactant and product? Or, write the difference between displacement and double-displacement reactions.
Question 6: What is anodization?
Or
What is the importance of the activity series?
Question 7: What is a hydrocarbon? Explain with an example.
Or
Write the name and structural formula of an alcohol. What atoms are found in its molecule?
Question 8: What is the role of saliva in human digestion?
Or
Why are mitochondria called the powerhouse of the cell?
Question 9: How are the nutritional processes completed in an amoeba?
Or
Write the functions of blood.
Question 10: Write the difference between an artery and a vein.
Or
Write the difference between blood and lymph.
Question 11: Write the functions of the human testis.
Or
What type of fission occurs in an amoeba?
Question 12: Draw a labeled diagram of the human female reproductive system.
Or
Draw a labeled diagram of the human male reproductive system.
Question 13: In which part of the cell are genes found?
OrWrite Mendel’s law of independent assortment.Question
14: What is the role of X and Y alleles in sex determination? By diagram
