Dr. Homi Bhabha Exam sample question paper for Class 6 with our comprehensive set 10 is designed specifically for students following the Maharashtra State Board curriculum, aligning perfectly with the textbooks for 4th, 5th, and 6th standards. This sample question paper is designed to challenge students with in-depth, analytical questions from Maharashtra State Board, CBSE, ICSE, and IB textbooks, covering fundamental science concepts at a high difficulty level.
With questions set at a medium difficulty level, students can effectively enhance their understanding and confidence. Each question aims to challenge students while reinforcing their knowledge, making this resource invaluable preparing for DHBBVS.
What is the process by which plants make their own food?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Germination
Answer: b) Photosynthesis
Explanation: Photosynthesis is the process by which plants use sunlight, carbon dioxide, and water to produce glucose and oxygen.Which of these animals lays eggs?
a) Dog
b) Frog
c) Rabbit
d) Whale
Answer: b) Frog
Explanation: Frogs are amphibians that reproduce by laying eggs, usually in water.Which part of the plant is responsible for absorbing water and nutrients?
a) Stem
b) Leaf
c) Root
d) Flower
Answer: c) Root
Explanation: Roots absorb water and nutrients from the soil and anchor the plant in the ground.What is the primary source of energy for Earth?
a) Moon
b) Sun
c) Stars
d) Volcanoes
Answer: b) Sun
Explanation: The Sun is the primary source of energy for life on Earth, providing light and heat.
What is the function of stomata in plants?
a) Transport water
b) Store food
c) Exchange gases
d) Absorb sunlight
Answer: c) Exchange gases
Explanation: Stomata are tiny openings on the surface of leaves that allow the exchange of oxygen and carbon dioxide.Which organ in the human body is responsible for pumping blood?
a) Brain
b) Lungs
c) Heart
d) Liver
Answer: c) Heart
Explanation: The heart is a muscular organ that pumps blood throughout the body via the circulatory system.Which planet is known as the “Red Planet”?
a) Venus
b) Mars
c) Jupiter
d) Saturn
Answer: b) Mars
Explanation: Mars is called the “Red Planet” due to its reddish appearance caused by iron oxide on its surface.What are the three states of matter?
a) Solid, Liquid, Gas
b) Metal, Non-metal, Gas
c) Water, Ice, Steam
d) Earth, Fire, Water
Answer: a) Solid, Liquid, Gas
Explanation: The three states of matter are solid, liquid, and gas, based on the arrangement of particles.Which of these is a natural magnet?
a) Iron
b) Lodestone
c) Steel
d) Copper
Answer: b) Lodestone
Explanation: Lodestone is a naturally occurring magnetized mineral, primarily composed of magnetite.What is the function of chlorophyll in plants?
a) To absorb water
b) To absorb sunlight
c) To provide structure
d) To store energy
Answer: b) To absorb sunlight
Explanation: Chlorophyll is the green pigment in plants that absorbs sunlight for photosynthesis.What do you call animals that eat only plants?
a) Herbivores
b) Carnivores
c) Omnivores
d) Scavengers
Answer: a) Herbivores
Explanation: Herbivores are animals that eat only plant-based food.Which gas do humans exhale during respiration?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
d) Hydrogen
Answer: c) Carbon Dioxide
Explanation: During respiration, humans exhale carbon dioxide as a byproduct of cellular activity.
What is the function of the xylem in plants?
a) Transport food
b) Transport water
c) Transport nutrients
d) Transport gases
Answer: b) Transport water
Explanation: Xylem tissues in plants carry water and dissolved minerals from the roots to the rest of the plant.What is the boiling point of water at sea level?
a) 50°C
b) 100°C
c) 150°C
d) 200°C
Answer: b) 100°C
Explanation: At sea level, water boils at 100°C under normal atmospheric pressure.What is the smallest unit of life?
a) Atom
b) Molecule
c) Cell
d) Tissue
Answer: c) Cell
Explanation: The cell is the basic structural and functional unit of all living organisms.Which instrument is used to measure atmospheric pressure?
a) Thermometer
b) Barometer
c) Hygrometer
d) Altimeter
Answer: b) Barometer
Explanation: A barometer measures atmospheric pressure, essential for weather forecasting.What is the SI unit of force?
a) Newton
b) Joule
c) Pascal
d) Watt
Answer: a) Newton
Explanation: The SI unit of force is named after Sir Isaac Newton and is represented as N.Which mirror is used in a car’s rearview mirror?
a) Plane mirror
b) Concave mirror
c) Convex mirror
d) None of the above
Answer: c) Convex mirror
Explanation: Convex mirrors provide a wider field of view, making them ideal for rearview mirrors.What is the phenomenon of splitting light into its colors called?
a) Refraction
b) Diffusion
c) Dispersion
d) Reflection
Answer: c) Dispersion
Explanation: Dispersion occurs when light passes through a prism and splits into its constituent colors.What is the gravitational acceleration on Earth’s surface?
a) 9.8 m/s²
b) 8.9 m/s²
c) 10.8 m/s²
d) 6.5 m/s²
Answer: a) 9.8 m/s²
Explanation: The acceleration due to gravity near Earth’s surface is approximately 9.8 m/s².Which of these materials is a poor conductor of heat?
a) Copper
b) Aluminum
c) Wood
d) Iron
Answer: c) Wood
Explanation: Wood is a poor conductor of heat and is often used as an insulator.Which of these substances is a metal?
a) Sulfur
b) Iron
c) Oxygen
d) Nitrogen
Answer: b) Iron
Explanation: Iron is a metal with properties such as conductivity, ductility, and malleability.What is the chemical symbol for gold?
a) G
b) Go
c) Au
d) Ag
Answer: c) Au
Explanation: The chemical symbol for gold is Au, derived from its Latin name “Aurum.”Which gas turns lime water milky?
a) Oxygen
b) Carbon dioxide
c) Hydrogen
d) Nitrogen
Answer: b) Carbon dioxide
Explanation: When carbon dioxide is passed through lime water, it forms calcium carbonate, which makes the solution appear milky.Which acid is found in lemon?
a) Hydrochloric acid
b) Sulfuric acid
c) Citric acid
d) Acetic acid
Answer: c) Citric acid
Explanation: Lemon contains citric acid, responsible for its sour taste.What is the state of matter that has no definite shape but a definite volume?
a) Solid
b) Liquid
c) Gas
d) Plasma
Answer: b) Liquid
Explanation: Liquids take the shape of their container but maintain a fixed volume.What is the process of rusting?
a) Oxidation
b) Reduction
c) Neutralization
d) Sublimation
Answer: a) Oxidation
Explanation: Rusting is the oxidation of iron in the presence of water and oxygen, forming iron oxide.Which organ is responsible for pumping blood throughout the body?
a) Lungs
b) Heart
c) Liver
d) Kidney
Answer: b) Heart
Explanation: The heart is a muscular organ that pumps oxygenated blood to the body and deoxygenated blood to the lungs.What is the primary pigment in plants that captures sunlight?
a) Hemoglobin
b) Chlorophyll
c) Melanin
d) Carotene
Answer: b) Chlorophyll
Explanation: Chlorophyll in chloroplasts captures sunlight for photosynthesis.What is the basic function of roots in plants?
a) Absorb water and nutrients
b) Photosynthesis
c) Transport food
d) Produce seeds
Answer: a) Absorb water and nutrients
Explanation: Roots absorb water and minerals from the soil and anchor the plant.Which part of the cell contains genetic material?
a) Cytoplasm
b) Nucleus
c) Cell membrane
d) Mitochondria
Answer: b) Nucleus
Explanation: The nucleus houses DNA, which contains genetic instructions for the organism.What is the main function of white blood cells?
a) Transport oxygen
b) Fight infections
c) Clot blood
d) Digest food
Answer: b) Fight infections
Explanation: White blood cells are part of the immune system and help fight infections.What is the process by which plants make their food?
a) Transpiration
b) Respiration
c) Photosynthesis
d) Germination
Answer: c) Photosynthesis
Explanation: Photosynthesis is the process where plants convert sunlight into food using carbon dioxide and water.Which type of joint is present in the human knee?
a) Ball and socket joint
b) Hinge joint
c) Pivot joint
d) Fixed joint
Answer: b) Hinge joint
Explanation: The hinge joint in the knee allows movement in one direction.What is the term for animals that eat both plants and animals?
a) Herbivores
b) Carnivores
c) Omnivores
d) Scavengers
Answer: c) Omnivores
Explanation: Omnivores consume both plant and animal matter for energy.
Who discovered penicillin?
a) Alexander Fleming
b) Louis Pasteur
c) Marie Curie
d) Thomas Edison
Answer: a) Alexander Fleming
Explanation: Alexander Fleming discovered penicillin, the first widely used antibiotic.Which planet has the most moons?
a) Jupiter
b) Saturn
c) Uranus
d) Neptune
Answer: b) Saturn
Explanation: Saturn has the most moons of any planet in the solar system.What is the chemical formula for water?
a) CO₂
b) H₂O
c) O₂
d) NH₃
Answer: b) H₂O
Explanation: Water is composed of two hydrogen atoms and one oxygen atom, represented as H₂O.What is the largest organ in the human body?
a) Liver
b) Brain
c) Skin
d) Heart
Answer: c) Skin
Explanation: The skin is the largest organ, covering and protecting the entire body.What is the nearest star to Earth?
a) Sirius
b) Alpha Centauri
c) Proxima Centauri
d) The Sun
Answer: d) The Sun
Explanation: The Sun is the closest star to Earth and provides light and heat necessary for life.
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