What is the hardest naturally occurring substance on Earth? Answer: Diamond
What type of energy is stored in a stretched rubber band? Answer: Potential energy
Which part of the human eye controls the amount of light entering it? Answer: Iris
What is the common name for solid carbon dioxide? Answer: Dry ice
What are the smallest blood vessels in the human body called? Answer: Capillaries
Which planet in our solar system rotates sideways on its axis? Answer: Uranus
What scientific instrument is used to measure atmospheric pressure? Answer: Barometer
What do we call a material that does not easily allow heat or electricity to pass through it? Answer: Insulator
Which type of blood cells fight off infections in the human body? Answer: White blood cells
What is the process called when a liquid turns into gas below its boiling point? Answer: Evaporation
Challenging Questions (1–2 Word Answers) 11. Which acid is present in an ant sting? Answer: Formic acid
What optical phenomenon causes a straight stick to look bent when submerged in water? Answer: Refraction
What is the only metal that remains a liquid at room temperature? Answer: Mercury
Which cell organelle is commonly referred to as the "suicide bag" of the cell? Answer: Lysosome
What force causes liquid droplets to take a spherical shape? Answer: Surface tension
CLASS 10 SCIENCE QUESTIONNAIRE
Normal Questions
What is the chemical name for common baking soda? Answer: Sodium bicarbonate
Which gland in the human body is known as the "master gland"? Answer: Pituitary gland
What type of lens is used in spectacles to correct short-sightedness (myopia)? Answer: Concave lens
What is the primary gas constituent of natural gas? Answer: Methane
In physics, what term describes the rate of change of velocity? Answer: Acceleration
What process causes water loss in the form of vapor through leaf stomata? Answer: Transpiration
Which physical principle explains why heavy steel ships can float on water? Answer: Archimedes' principle
Which atmospheric layer absorbs most of the Sun's harmful ultraviolet radiation? Answer: Ozone layer
Who discovered the negatively charged subatomic particle called the electron? Answer: J.J. Thomson
What is the pH value of pure distilled water at room temperature? Answer: 7
Challenging Questions (1–2 Word Answers) 11. What law states that electric current is directly proportional to potential difference across a conductor? Answer: Ohm's Law
What is the fundamental structural and functional unit of the human kidney? Answer: Nephron
What is the biological process by which bacteria convert free atmospheric nitrogen into soil ammonia? Answer: Nitrogen fixation
Which hormone secreted by the pancreas decreases blood sugar levels? Answer: Insulin
What term describes a chemical reaction that absorbs energy from its surroundings? Answer: Endothermic reaction
CLASS 8/9 SCIENCE QUESTIONNAIRE
ReplyDeleteNormal Questions
What is the hardest naturally occurring substance on Earth?
Answer: Diamond
What type of energy is stored in a stretched rubber band?
Answer: Potential energy
Which part of the human eye controls the amount of light entering it?
Answer: Iris
What is the common name for solid carbon dioxide?
Answer: Dry ice
What are the smallest blood vessels in the human body called?
Answer: Capillaries
Which planet in our solar system rotates sideways on its axis?
Answer: Uranus
What scientific instrument is used to measure atmospheric pressure?
Answer: Barometer
What do we call a material that does not easily allow heat or electricity to pass through it?
Answer: Insulator
Which type of blood cells fight off infections in the human body?
Answer: White blood cells
What is the process called when a liquid turns into gas below its boiling point?
Answer: Evaporation
Challenging Questions (1–2 Word Answers)
11. Which acid is present in an ant sting?
Answer: Formic acid
What optical phenomenon causes a straight stick to look bent when submerged in water?
Answer: Refraction
What is the only metal that remains a liquid at room temperature?
Answer: Mercury
Which cell organelle is commonly referred to as the "suicide bag" of the cell?
Answer: Lysosome
What force causes liquid droplets to take a spherical shape?
Answer: Surface tension
CLASS 10 SCIENCE QUESTIONNAIRE
Normal Questions
What is the chemical name for common baking soda?
Answer: Sodium bicarbonate
Which gland in the human body is known as the "master gland"?
Answer: Pituitary gland
What type of lens is used in spectacles to correct short-sightedness (myopia)?
Answer: Concave lens
What is the primary gas constituent of natural gas?
Answer: Methane
In physics, what term describes the rate of change of velocity?
Answer: Acceleration
What process causes water loss in the form of vapor through leaf stomata?
Answer: Transpiration
Which physical principle explains why heavy steel ships can float on water?
Answer: Archimedes' principle
Which atmospheric layer absorbs most of the Sun's harmful ultraviolet radiation?
Answer: Ozone layer
Who discovered the negatively charged subatomic particle called the electron?
Answer: J.J. Thomson
What is the pH value of pure distilled water at room temperature?
Answer: 7
Challenging Questions (1–2 Word Answers)
11. What law states that electric current is directly proportional to potential difference across a conductor?
Answer: Ohm's Law
What is the fundamental structural and functional unit of the human kidney?
Answer: Nephron
What is the biological process by which bacteria convert free atmospheric nitrogen into soil ammonia?
Answer: Nitrogen fixation
Which hormone secreted by the pancreas decreases blood sugar levels?
Answer: Insulin
What term describes a chemical reaction that absorbs energy from its surroundings?
Answer: Endothermic reaction