Which part of a plant makes food using sunlight?

A) Root B) Leaf C) Stem D) Flower

Correct: B) Leaf

Which part of a plant absorbs water from the soil?

A) Leaf B) Flower C) Root D) Seed

Correct: C) Root

What gas do plants release during photosynthesis?

A) Carbon dioxide B) Nitrogen C) Oxygen D) Hydrogen

Correct: C) Oxygen

Which part of the plant holds it firmly in the ground?

A) Leaf B) Flower C) Stem D) Root

Correct: D) Root

Seeds are found inside which part of the plant?

A) Root B) Stem C) Leaf D) Fruit

Correct: D) Fruit

What do plants need to make their own food?

A) Sunlight, water and CO₂ B) Oxygen and water C) Only water D) Only sunlight

Correct: A) Sunlight, water and CO₂

Which type of root looks like a big orange cone underground?

A) Fibrous root B) Tap root C) Aerial root D) Prop root

Correct: B) Tap root

Photosynthesis takes place mainly in the:

A) Root B) Stem C) Flower D) Leaf

Correct: D) Leaf

Which part of the plant carries water from roots to leaves?

A) Fruit B) Flower C) Stem D) Seed

Correct: C) Stem

The process by which plants make food is called:

A) Respiration B) Digestion C) Photosynthesis D) Transpiration

Correct: C) Photosynthesis

Which of these is a mammal?

A) Eagle B) Frog C) Whale D) Shark

Correct: C) Whale

A butterfly goes through how many stages in its life cycle?

A) 2 B) 3 C) 4 D) 5

Correct: C) 4

Which animal lays eggs AND feeds its young with milk?

A) Frog B) Platypus C) Eagle D) Snake

Correct: B) Platypus

What do herbivores eat?

A) Only meat B) Both plants and meat C) Only plants D) Only insects

Correct: C) Only plants

Which bird cannot fly?

A) Eagle B) Pigeon C) Ostrich D) Sparrow

Correct: C) Ostrich

The larva of a butterfly is called a:

A) Pupa B) Cocoon C) Nymph D) Caterpillar

Correct: D) Caterpillar

Fish breathe using:

A) Lungs B) Gills C) Skin D) Nostrils

Correct: B) Gills

Which is a cold-blooded animal?

A) Dog B) Whale C) Snake D) Elephant

Correct: C) Snake

Carnivores are animals that eat:

A) Only plants B) Only fruits C) Only meat D) Both plants and meat

Correct: C) Only meat

Which animal is known as the Ship of the Desert?

A) Horse B) Camel C) Elephant D) Donkey

Correct: B) Camel

In which state is water at room temperature?

A) Solid B) Gas C) Plasma D) Liquid

Correct: D) Liquid

What is the boiling point of water?

A) 0°C B) 37°C C) 100°C D) 212°C

Correct: C) 100°C

Water turns to ice at:

A) 0°C B) 4°C C) 10°C D) −10°C

Correct: A) 0°C

What is the process of water turning into vapour called?

A) Condensation B) Precipitation C) Evaporation D) Sublimation

Correct: C) Evaporation

Which covers about 71% of the Earth's surface?

A) Land B) Ice C) Forests D) Water

Correct: D) Water

The water cycle is driven by energy from the:

A) Moon B) Wind C) Sun D) Earth's core

Correct: C) Sun

Rainwater that soaks into the ground is called:

A) Surface water B) Groundwater C) Runoff D) Condensate

Correct: B) Groundwater

Which is the largest ocean on Earth?

A) Atlantic B) Indian C) Arctic D) Pacific

Correct: D) Pacific

When water vapour cools and turns back into liquid, the process is called:

A) Evaporation B) Condensation C) Precipitation D) Infiltration

Correct: B) Condensation

How many bones does the adult human body have?

A) 106 B) 206 C) 306 D) 406

Correct: B) 206

Which organ pumps blood around the body?

A) Lungs B) Liver C) Heart D) Kidney

Correct: C) Heart

What is the largest organ of the human body?

A) Liver B) Heart C) Brain D) Skin

Correct: D) Skin

Which sense organ helps us taste food?

A) Nose B) Ear C) Eye D) Tongue

Correct: D) Tongue

Oxygen enters the blood in the:

A) Heart B) Stomach C) Lungs D) Liver

Correct: C) Lungs

The backbone is also called the:

A) Femur B) Sternum C) Spine D) Tibia

Correct: C) Spine

Which blood cells fight disease?

A) Red blood cells B) Platelets C) Plasma D) White blood cells

Correct: D) White blood cells

The brain is protected by the:

A) Spine B) Sternum C) Skull D) Pelvis

Correct: C) Skull

The longest bone in the human body is the:

A) Spine B) Humerus C) Femur D) Tibia

Correct: C) Femur

Which nutrient gives us the most energy?

A) Vitamins B) Minerals C) Carbohydrates D) Water

Correct: C) Carbohydrates

Vitamin C is found in large amounts in:

A) Milk B) Rice C) Oranges D) Meat

Correct: C) Oranges

Which nutrient is needed to build and repair muscles?

A) Carbohydrates B) Fats C) Vitamins D) Proteins

Correct: D) Proteins

Calcium is most important for:

A) Eyesight B) Bones and teeth C) Digestion D) Blood clotting

Correct: B) Bones and teeth

Which disease is caused by lack of Vitamin C?

A) Rickets B) Night blindness C) Scurvy D) Anaemia

Correct: C) Scurvy

Rice, wheat and potatoes are rich in:

A) Proteins B) Fats C) Minerals D) Carbohydrates

Correct: D) Carbohydrates

Iodine is added to salt to prevent:

A) Anaemia B) Goitre C) Rickets D) Scurvy

Correct: B) Goitre

Which of these is a complete protein food?

A) Rice B) Egg C) Apple D) Potato

Correct: B) Egg

Lack of Vitamin D causes:

A) Scurvy B) Night blindness C) Rickets D) Anaemia

Correct: C) Rickets

What causes day and night on Earth?

A) Earth orbiting the Sun B) The Moon's shadow C) Earth rotating on its axis D) The Sun moving

Correct: C) Earth rotating on its axis

Which planet is closest to the Sun?

A) Earth B) Venus C) Mercury D) Mars

Correct: C) Mercury

The Sun is a:

A) Planet B) Moon C) Comet D) Star

Correct: D) Star

How long does Earth take to orbit the Sun?

A) 24 hours B) 28 days C) 365 days D) 100 days

Correct: C) 365 days

Clouds are made of:

A) Water vapour B) Dust only C) Tiny water droplets D) Smoke

Correct: C) Tiny water droplets

Which wind brings heavy rainfall to India in summer?

A) Trade winds B) Monsoon C) Westerlies D) Polar winds

Correct: B) Monsoon

Lightning is a form of:

A) Sound B) Heat C) Static electricity D) Magnetism

Correct: C) Static electricity

The instrument used to measure rainfall is called a:

A) Thermometer B) Barometer C) Rain gauge D) Hygrometer

Correct: C) Rain gauge

A magnet always has how many poles?

A) 1 B) 2 C) 3 D) 4

Correct: B) 2

Like poles of two magnets:

A) Attract B) Repel C) Have no effect D) Stick together

Correct: B) Repel

Which material is attracted to a magnet?

A) Copper B) Plastic C) Iron D) Aluminium

Correct: C) Iron

Which direction does a freely suspended magnet's North pole point?

A) South B) East C) West D) North

Correct: D) North

A compass works because:

A) It contains a battery B) Earth is a giant magnet C) It is made of iron D) It uses solar energy

Correct: B) Earth is a giant magnet

Magnetic force can pass through:

A) Iron only B) Water only C) Paper D) All non-magnetic materials

Correct: D) All non-magnetic materials

Magnets are used in:

A) Only toys B) Only compasses C) Electric motors and speakers D) Only refrigerators

Correct: C) Electric motors and speakers

The strongest parts of a magnet are its:

A) Centre B) Edges C) Poles D) Flat faces

Correct: C) Poles

Light travels in a:

A) Curved line B) Zigzag C) Straight line D) Wave only

Correct: C) Straight line

The bending of light when it passes from one medium to another is:

A) Reflection B) Refraction C) Dispersion D) Absorption

Correct: B) Refraction

Which colour has the longest wavelength in visible light?

A) Violet B) Blue C) Green D) Red

Correct: D) Red

A plane mirror shows:

A) A real image B) A virtual image C) No image D) A blurred image

Correct: B) A virtual image

A prism splits white light into:

A) 3 colours B) 5 colours C) 7 colours D) 2 colours

Correct: C) 7 colours

The speed of light in air is approximately:

A) 3,000 km/s B) 300,000 km/s C) 30,000 km/s D) 3,000,000 km/s

Correct: B) 300,000 km/s

Shadows are formed because light:

A) Reflects B) Refracts C) Travels in straight lines D) Bends around objects

Correct: C) Travels in straight lines

Objects that produce their own light are called:

A) Translucent B) Opaque C) Luminous D) Transparent

Correct: C) Luminous

Friction always acts:

A) In the direction of motion B) Opposite to motion C) Perpendicular to motion D) Upward

Correct: B) Opposite to motion

Which type of motion does a pendulum show?

A) Circular B) Linear C) Random D) Oscillatory

Correct: D) Oscillatory

Gravity pulls objects:

A) Upward B) Sideways C) Downward D) In all directions

Correct: C) Downward

Which has more inertia?

A) Feather B) Cricket ball C) Paper D) Balloon

Correct: B) Cricket ball

The unit of force is:

A) Joule B) Watt C) Newton D) Pascal

Correct: C) Newton

A spinning top shows which type of motion?

A) Linear B) Oscillatory C) Circular D) Random

Correct: C) Circular

Rolling friction is ___ than sliding friction:

A) Greater B) Equal C) Less D) Not comparable

Correct: C) Less

A push or pull exerted on an object is called:

A) Energy B) Power C) Force D) Work

Correct: C) Force

Which gas is the main cause of global warming?

A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen

Correct: C) Carbon dioxide

Acid rain is mainly caused by:

A) CO₂ B) Oxygen C) SO₂ and NOₓ D) Water vapour

Correct: C) SO₂ and NOₓ

Which is a renewable source of energy?

A) Coal B) Petroleum C) Solar power D) Natural gas

Correct: C) Solar power

What does the ozone layer protect us from?

A) Acid rain B) UV radiation C) Greenhouse gases D) Pollution

Correct: B) UV radiation

Which of the 3 Rs comes first in priority?

A) Recycle B) Reduce C) Reuse D) All are equal

Correct: B) Reduce

Biodegradable waste is:

A) Plastic B) Glass C) Metal D) Kitchen waste

Correct: D) Kitchen waste

Planting trees helps reduce:

A) Rainfall B) Soil fertility C) Carbon dioxide D) Water level

Correct: C) Carbon dioxide

Which type of pollution is caused by loud sounds?

A) Air pollution B) Water pollution C) Soil pollution D) Noise pollution

Correct: D) Noise pollution