1. Which organ pumps blood throughout our body?
The heart is a muscular organ that pumps blood around the body.
2. Which organ controls many activities of the human body?
The brain controls many body activities and helps us think, learn, and remember.
3. Which organs take in oxygen when we breathe?
The lungs take in oxygen from the air when we breathe.
4. What is the framework of bones inside our body called?
The skeleton is the framework of bones that supports our body.
5. Which sense organ helps us identify different tastes?
The tongue contains taste receptors that help us detect different tastes.
6. Which organ protects the outside of our body and helps us feel touch?
Skin covers the body and contains receptors that help us sense touch, temperature, and pain.
7. Which mineral is important for strong bones and teeth?
Calcium is an important mineral for building and maintaining strong bones and teeth.
8. Which vitamin is important for healthy bones and helps the body use calcium?
Vitamin D helps the body absorb and use calcium, which is important for bones.
9. Which organ helps digest the food we eat?
The stomach helps break down food during digestion.
10. Which part of blood carries oxygen around the body?
Red blood cells contain hemoglobin, which helps carry oxygen.
11. Which part of most green plants makes food using sunlight?
Green leaves use sunlight to help the plant make food.
12. Which part of a plant absorbs water and minerals from the soil?
Roots take in water and minerals from the soil.
13. What is the process by which green plants make their food using sunlight called?
Photosynthesis is the process in which green plants use sunlight to make food.
14. Which part of a flowering plant can grow into a new plant?
A seed contains a young plant and can grow into a new plant under suitable conditions.
15. Which source of energy is essential for photosynthesis?
Sunlight provides the energy needed for photosynthesis.
16. Which gas is released by green plants during photosynthesis?
During photosynthesis, green plants release oxygen into the air.
17. Which plant commonly grows in tropical coastal areas and produces coconuts?
The coconut palm produces coconuts and commonly grows in tropical regions.
18. Which plant is specially adapted to survive in dry desert conditions?
Cacti have adaptations that help them survive with very little water.
19. Which flower commonly grows in ponds and other freshwater bodies?
Lotus plants commonly grow in ponds and other freshwater habitats.
20. Which is the national tree of India?
The Banyan tree is the national tree of India.
21. What is the largest animal known to have lived on Earth?
The blue whale is the largest animal known to have lived on Earth.
22. Which land animal is famous for its very high running speed?
The cheetah is famous for being the fastest land animal.
23. Which animal has the longest neck among living land animals?
The giraffe has an exceptionally long neck that helps it reach high leaves.
24. What do we call an animal that mainly eats plants?
A herbivore is an animal whose diet mainly consists of plants.
25. What do we call an animal that mainly eats other animals?
A carnivore is an animal that mainly eats other animals.
26. Which word describes an animal that eats both plants and animals?
An omnivore eats both plant and animal foods.
27. A frog belongs to which group of animals?
Frogs are amphibians because they spend part of their life in water and part on land.
28. A snake belongs to which group of animals?
Snakes are reptiles. They have scales and are cold-blooded animals.
29. Which group does a whale belong to?
Whales are mammals because they breathe air and mothers feed their young with milk.
30. Which is the national bird of India?
The Indian peacock is the national bird of India.
31. Which object is at the centre of our Solar System?
The Sun is at the centre of our Solar System, and the planets orbit it.
32. Which planet is closest to the Sun?
Mercury is the closest planet to the Sun.
33. Which is the largest planet in the Solar System?
Jupiter is the largest planet in our Solar System.
34. Which planet is known as the Red Planet?
Mars appears reddish because of iron-rich materials on its surface.
35. Which planet is especially famous for its large ring system?
Saturn is famous for its prominent system of rings made mainly of ice and rock.
36. What is Earth’s natural satellite?
The Moon is the natural satellite of Earth.
37. How many planets are officially recognized in our Solar System?
Our Solar System has eight officially recognized planets.
38. Which planet is often called the Blue Planet?
Earth looks blue from space largely because much of its surface is covered by water.
39. Which is the largest ocean on Earth?
The Pacific Ocean is the largest ocean on Earth.
40. Which is the highest mountain above sea level?
Mount Everest has the highest elevation above sea level.
41. What is the capital of India?
New Delhi is the capital of India.
42. What is the currency of India?
The Indian rupee is the official currency of India.
43. What is the national animal of India?
The Bengal tiger is the national animal of India.
44. What is the national flower of India?
The lotus is the national flower of India.
45. Which fruit is the national fruit of India?
Mango is the national fruit of India.
46. Which tree is the national tree of India?
The Banyan tree is India’s national tree.
47. What is the national anthem of India called?
“Jana Gana Mana” is the national anthem of India.
48. Who wrote the national anthem of India?
Rabindranath Tagore wrote “Jana Gana Mana.”
49. What is the blue wheel in the centre of the Indian flag called?
The blue wheel in the centre of the Indian flag is called the Ashoka Chakra.
50. What is India’s national flag commonly called?
India’s national flag is commonly called the Tricolour because of its three main bands.
51. What do we call a natural stream of flowing water?
A river is a natural stream of flowing water.
52. Which type of region usually receives very little rainfall?
Deserts are very dry regions that receive little rainfall.
53. What is land completely surrounded by water called?
An island is a piece of land completely surrounded by water.
54. What is land surrounded by water on three sides called?
A peninsula is land surrounded by water on three sides.
55. What imaginary line divides Earth into the Northern and Southern Hemispheres?
The Equator is an imaginary line around the middle of Earth at 0° latitude.
56. Which model represents the shape of Earth?
A globe is a model of Earth that shows its roughly spherical shape.
57. In which direction does the Sun appear to rise?
The Sun appears to rise in the east.
58. In which direction does the Sun appear to set?
The Sun appears to set in the west.
59. Which is the largest continent?
Asia is the largest continent by both area and population.
60. Which continent is famous for the Sahara Desert?
The Sahara Desert is located in northern Africa.
61. How many hours are there in one full day?
A full day has 24 hours.
62. How many minutes are there in one hour?
One hour contains 60 minutes.
63. How many seconds are there in one minute?
One minute contains 60 seconds.
64. How many months are there in a year?
A calendar year has 12 months.
65. What do we call a year that normally has 366 days?
A leap year has 366 days instead of the usual 365.
66. Which month has 28 days in a common year?
February has 28 days in a common year and 29 days in a leap year.
67. Which day comes immediately after Saturday?
Sunday comes immediately after Saturday.
68. Which day comes between Tuesday and Thursday?
Wednesday comes between Tuesday and Thursday.
69. How many days are there in one week?
There are seven days in one week.
70. Which part of the day comes before afternoon?
Morning comes before afternoon in the usual daily sequence.
71. Which sport uses a bat, ball and wickets?
Cricket is played with a bat and ball, and wickets are used in the game.
72. How many players from one cricket team are on the field while playing?
A cricket team has 11 players on the field.
73. Which sport is mainly played by kicking a ball into a goal?
In football, players try to score by getting the ball into the opponent’s goal.
74. Which sport uses a shuttlecock?
Badminton is played using a racket and a shuttlecock.
75. Which game is played on a board using pieces such as kings, queens and bishops?
Chess is a strategy board game played with kings, queens, bishops, rooks, knights and pawns.
76. Which vehicle normally travels on railway tracks?
Trains are designed to travel on railway tracks.
77. Which means of transport is mainly used to travel through the air?
An aeroplane is designed for air travel.
78. Which vehicle is used to travel on seas and oceans?
Ships are designed to travel on water.
79. Which professional diagnoses and treats illnesses?
Doctors diagnose and treat illnesses and help people maintain their health.
80. Who grows crops such as wheat, rice and vegetables?
Farmers grow crops and play an important role in producing food.
81. Which computer device is mainly used for typing?
A keyboard is used to enter letters, numbers and other characters into a computer.
82. Which device is commonly used to point and click on a computer screen?
A mouse is commonly used to move a pointer, click and select items on a computer.
83. Which computer device displays text, pictures and videos?
A monitor displays information visually on a screen.
84. Which device produces a paper copy of a document?
A printer creates a physical copy of digital information on paper.
85. What network allows computers and devices around the world to communicate and share information?
The Internet connects computers and devices so they can communicate and exchange information.
86. What should we do with materials that can be processed and used again?
Recycling allows suitable materials to be processed and used again.
87. Which living things absorb carbon dioxide and release oxygen during photosynthesis?
Green plants take in carbon dioxide and release oxygen during photosynthesis.
88. Which resource should we save because clean water is essential for life?
Clean water is essential for drinking, food production, hygiene and many other activities.
89. Where should pedestrians cross a busy road when a marked crossing is available?
A zebra crossing provides a marked place for pedestrians to cross the road.
90. What safety device should passengers use while travelling in a car?
A seat belt helps protect passengers during sudden stops and crashes.
91. Which gas do humans need for breathing?
Humans need oxygen for normal breathing and life.
92. Which gas do green plants use to make food?
Green plants use carbon dioxide during photosynthesis to make food.
93. Which instrument is used to measure temperature?
A thermometer is used to measure temperature.
94. Which instrument helps us find directions?
A compass helps identify directions such as north, south, east and west.
95. Which unit is commonly used to measure the mass of a school bag?
Kilograms are commonly used to measure the mass of objects such as school bags.
96. Which unit is commonly used to measure the amount of liquid in a large bottle?
Litres are commonly used to measure the volume of liquids.
97. Which shape has exactly three sides and three corners?
A triangle has three sides and three corners.
98. Which shape has four equal sides and four corners?
A square has four equal sides and four corners.
99. What colourful arc can appear in the sky when sunlight passes through water droplets?
A rainbow can form when sunlight interacts with water droplets in the atmosphere.
100. Which substance is essential for life and covers most of Earth’s surface?
Water is essential for life and covers about 71% of Earth’s surface.