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8th Standard Question Paper 2022 with Answers

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Educational preparation is essential for academic success. This provides questions and answers from the 8th standard question paper 2022, covering all subjects like Mathematics, Science, English, Social Science, and more. The questions include various types like objective, short, and long answers to ensure comprehensive learning for students.

Mathematics

Question: What is the value of 5x+35x + 3 when x=2x = 2?

Answer: The value is 5(2)+3=10+3=135(2) + 3 = 10 + 3 = 13.

Question: Simplify 3a+4a−2b+b3a + 4a – 2b + b.

Answer: The simplified expression is 7a−b7a – b.

Question: Solve for xx: 2x+5=152x + 5 = 15.

Answer: 2x=15−5→x=102=52x = 15 – 5 \rightarrow x = \frac{10}{2} = 5.

Question: Convert 3.5 into a fraction.

Answer: 3.5=723.5 = \frac{7}{2}.

Question: Find the area of a rectangle with length 8 cm and breadth 6 cm.

Answer: Area = 8×6=488 \times 6 = 48 cm².

Question: Write the square of 15.

Answer: 152=22515^2 = 225.

Question: What is 25% of 200?

Answer: 25%25\% of 200=25100×200=50200 = \frac{25}{100} \times 200 = 50.

Question: Find the perimeter of a square with side 5 cm.

Answer: Perimeter = 4×5=204 \times 5 = 20 cm.

Question: Solve 3x−7=2x+53x – 7 = 2x + 5.

Answer: x=12x = 12.

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Question: Simplify 4(2x−3)−x4(2x – 3) – x.

Answer: 8x−12−x=7x−128x – 12 – x = 7x – 12.

Question: Find the HCF of 36 and 48.

Answer: The HCF is 12.

Question: Express 0.75 as a percentage.

Answer: 0.75=75%0.75 = 75\%.

Question: Write the first four multiples of 7.

Answer: The first four multiples are 7, 14, 21, 28.

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Question: If a triangle has sides 3 cm, 4 cm, and 5 cm, find its perimeter.

Answer: Perimeter = 3+4+5=123 + 4 + 5 = 12 cm.

Question: Solve for yy: 5y−10=05y – 10 = 0.

Answer: y=2y = 2.

Question: Convert 6 hours into minutes.

Answer: 6×60=3606 \times 60 = 360 minutes.

Question: Find the cube root of 27.

Answer: Cube root of 27 is 3.

Question: Write 25 as a product of its prime factors.

Answer: 25=5×525 = 5 \times 5.

Question: Find the value of 23+322^3 + 3^2.

Answer: 8+9=178 + 9 = 17.

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Question: A train travels 60 km in 1 hour. How far will it travel in 5 hours?

Answer: Distance = 60×5=30060 \times 5 = 300 km.

Science

Question: What is the chemical formula of water?

Answer: The chemical formula is H2OH_2O.

Question: Name the process by which plants make their food.

Answer: The process is photosynthesis.

Question: What is the unit of force?

Answer: The unit of force is Newton (N).

Question: Name the organ responsible for pumping blood in the human body.

Answer: The organ is the heart.

Question: What is the boiling point of water in Celsius?

Answer: The boiling point is 100∘C100^\circ C.

Question: Name the smallest unit of matter.

Answer: The smallest unit is the atom.

Question: Which gas is most abundant in Earth’s atmosphere?

Answer: The most abundant gas is nitrogen.

Question: Define gravity.

Answer: Gravity is the force that pulls objects toward the Earth.

Question: What is the function of chlorophyll?

Answer: Chlorophyll helps in photosynthesis by absorbing sunlight.

Question: Name one renewable source of energy.

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Answer: One renewable source is solar energy.

Question: What is the SI unit of temperature?

Answer: The SI unit is Kelvin (K).

Question: Which organelle is known as the powerhouse of the cell?

Answer: The mitochondrion is the powerhouse.

Question: What is the pH value of neutral substances?

Answer: The pH value is 7.

Question: Define friction.

Answer: Friction is the force that opposes motion between two surfaces.

Question: Name the scientist who proposed the law of gravitation.

Answer: The scientist is Sir Isaac Newton.

Question: What is a habitat?

Answer: A habitat is a natural environment where an organism lives.

Question: What is the main component of natural gas?

Answer: The main component is methane.

Question: Which planet is known as the Red Planet?

Answer: Mars is the Red Planet.

Question: What is the formula for speed?

Answer: Speed = Distance / Time.

English

Question: Write the plural form of “child.”

Answer: The plural form is “children.”

Question: Complete the sentence: “He _____ to school every day.”

Answer: “He goes to school every day.”

Question: What is the past tense of “write”?

Answer: The past tense is “wrote.”

Question: Define a noun.

Answer: A noun is a word that names a person, place, thing, or idea.

Question: Identify the adjective in this sentence: “The tall man walked quickly.”

Answer: The adjective is “tall.”

Question: Write the opposite of “happy.”

Answer: The opposite is “sad.”

Question: What is a synonym for “beautiful”?

Answer: A synonym is “pretty.”

Question: Rewrite in indirect speech: She said, “I am studying.”

Answer: She said that she was studying.

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Question: Write a sentence using the word “friendship.”

Answer: “Friendship is a valuable treasure.”

Question: What is the subject in the sentence: “The dog barked loudly”?

Answer: The subject is “The dog.”

Question: Define a verb.

Answer: A verb is a word that expresses an action or a state of being.

Question: Write the comparative form of “good.”

Answer: The comparative form is “better.”

Question: Correct the sentence: “She don’t like ice cream.”

Answer: “She doesn’t like ice cream.”

Question: What is the antonym of “big”?

Answer: The antonym is “small.”

Question: Write the singular form of “geese.”

Answer: The singular form is “goose.”

Question: What is the meaning of “honesty”?

Answer: Honesty means being truthful and sincere.

Question: Choose the correct option: (a) There (b) Their (c) They’re going to the park.

Answer: The correct option is “(c) They’re.”

Question: Define a conjunction.

Answer: A conjunction is a word used to connect words or sentences.

Question: Identify the preposition in the sentence: “She sat on the chair.”

Answer: The preposition is “on.”

Comprehensive preparation with such questions can strengthen academic knowledge and help in better exam performance. Consistent practice ensures improved understanding and confidence in all subjects.

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