Question 1 of 50
The figure shows a net. Which solid does it fold into?
🔬 Science · Class 6 · 2026-27
SOF ISO Class 6 free mock test and sample paper
A full ISO Class 6 practice paper: 50 questions for 60 marks in 60 minutes, in the same 3 sections and order as the SOF paper. Take it here with an instant score — no login, no sign-up — or print it with an OMR sheet and the answer key. Free, with no ads.
- Questions50
- Marks60
- Time60 min
- Sections3
The paper
Tap an answer for each question. The 60-minute clock starts at your first answer; press Finish and mark at the bottom when you are done, and every answer is explained.
Section 1 — Logical Reasoning · 10 × 1 mark
- Question 2 of 50
Which of these words cannot be made from the letters of the word INFORMATION? (Each letter may be used only as many times as it appears.)
- Question 3 of 50
How many rectangles are there in the given figure?
- Question 4 of 50
How many triangles are there in the given figure?
- Question 5 of 50
Vihaan's train left at 10:45 a.m. and the journey took 3 hours and 45 minutes. At what time did it arrive?
- Question 6 of 50
The codes of some digits are given below.
Digits 1 3 9 6 4 7 8 2 Codes + ~ $ = & % ^ @
Find the code for 36217.
- Question 7 of 50
Anaya walks 140 m towards East, then takes a left turn and walks 60 m. Turning left again, Anaya walks 80 m, then takes a right turn and walks 80 m. Finally, after one more left turn, Anaya walks 60 m. How far is Anaya now from the starting point?
- Question 8 of 50
Which option is the mirror image of the given figure when the mirror is held on its right?
- Question 9 of 50
Three of these numbers are alike in one way. Which one is different?
- Question 10 of 50
7 October of a year is a Saturday. What day of the week is 19 November of the same year?
Section 2 — Science · 35 × 1 mark
- Question 11 of 50
Before standard units, people measured with parts of the body. Which unit is the distance between the fingertips of the two arms stretched out sideways?
- Question 12 of 50
Which of these foods is a rich source of fat?
- Question 13 of 50
Which planet is the red planet, whose soil is rich in iron?
- Question 14 of 50
Which feature helps the pine live in a cold mountain slope?
- Question 15 of 50
What does iron do in the body?
- Question 16 of 50
Which of these statements about living things is incorrect?
- Question 17 of 50
Which of these is made mainly of clay?
- Question 18 of 50
Which of these is a tree?
- Question 19 of 50
Money plant is which kind of plant?
- Question 20 of 50
Earth is which of these?
- Question 21 of 50
What is the normal temperature of a healthy human body on the Fahrenheit scale?
- Question 22 of 50
Which of these is a solution that can dissolve no more of that solid at that temperature?
- Question 23 of 50
Going inwards towards the Sun, which planet comes immediately after Venus?
- Question 24 of 50
Which gas makes up about 21 parts in every hundred of the air?
- Question 25 of 50
Which of these plants is annual — it completes its whole life cycle in one season or one year?
- Question 26 of 50
Which resource does using LED bulbs save?
- Question 27 of 50
A student is about to do this:
Make a guess that could answer the question.
Which step must she have finished just before it?
- Question 28 of 50
Which of these would sensibly be measured in millimetres (mm)?
- Question 29 of 50
What is meant by the solvent?
- Question 30 of 50
A student is testing a food by putting a few drops of iodine solution on the food. What will she see if the food contains starch?
- Question 31 of 50
Which planet is the sixth from the Sun?
- Question 32 of 50
Which of these is one of the rocky bodies in the belt between Mars and Jupiter?
- Question 33 of 50
Which method a dissolved solid from the solution it is dissolved in?
- Question 34 of 50
Bone and tooth decay is caused by eating too little of which nutrient?
- Question 35 of 50
What does winnowing separate?
- Question 36 of 50
How would you test a food to find out whether it contains fat?
- Question 37 of 50
Over what range does a laboratory thermometer read?
- Question 38 of 50
Which change is this: a liquid is cooled until it turns into a solid?
- Question 39 of 50
Which branch of science is the study of the stars, planets and other objects beyond the Earth?
- Question 40 of 50
Rohan rides in a lift going up. Which of these is correct about Rohan?
- Question 41 of 50
Which unit would you use to measure the length of a pencil?
- Question 42 of 50
Eating too little iodine for a long time causes which deficiency disease?
- Question 43 of 50
Which nutrient do we mainly get from sunlight?
- Question 44 of 50
A scientist who works in geology studies which of these?
- Question 45 of 50
Which feature helps a camel live in the desert?
Section 3 — Achievers Section · 5 × 3 marks
- Question 46 of 50
Read the given statements and select the correct option.
Statement I : Amla and oranges are best eaten raw rather than cooked.
Statement II : Vitamin C is made by the body whenever food is heated.
- Question 47 of 50
Which of the given statements about natural resources is/are incorrect?
(i) Burning more coal is the best way to keep the air clean.
(ii) Nearly three quarters of the Earth's surface is covered by water.
(iii) Nitrogen makes up the largest share of the air.
(iv) Coal and petroleum are called fossil fuels because they formed from the remains of things that lived long ago.
- Question 48 of 50
Match the two columns and select the correct option.
Column I (What you use)
(i) A thread laid along the line and then straightened on a scale
(ii) A measuring tape
(iii) A metre scale
(iv) A divider and a scale
Column II (What it is for)
(a) measuring the length of a curved line
(b) measuring a long length, or one that bends round an object
(c) carrying a small distance off a drawing onto a scale
(d) measuring a straight length shorter than a metre
- Question 49 of 50
Read the given statements about materials and select the option that correctly marks them true (T) or false (F), in the order (i) to (v).
(i) Translucent things let no light at all pass through them.
(ii) Salt disappears into water because it dissolves, not because it is destroyed.
(iii) Things we can see clearly through are called transparent.
(iv) The same object can be made from more than one material.
(v) Materials are grouped by their properties so that they are easier to study.
- Question 50 of 50
Match the two columns and select the correct option.
Column I (Object)
(i) A kitchen ladle
(ii) The wire inside an electric cable
(iii) A window pane
(iv) A vest
Column II (Made of)
(a) steel
(b) cotton
(c) glass
(d) copper
Answer key and explanations (opens below)
1. (D) 2. (D) 3. (B) 4. (D) 5. (D) 6. (B) 7. (B) 8. (C) 9. (B) 10. (C) 11. (B) 12. (B) 13. (B) 14. (C) 15. (B) 16. (A) 17. (D) 18. (D) 19. (C) 20. (A) 21. (C) 22. (A) 23. (A) 24. (A) 25. (D) 26. (B) 27. (A) 28. (A) 29. (D) 30. (B) 31. (B) 32. (B) 33. (C) 34. (C) 35. (D) 36. (B) 37. (C) 38. (B) 39. (A) 40. (A) 41. (D) 42. (A) 43. (C) 44. (D) 45. (D) 46. (C) 47. (A) 48. (C) 49. (A) 50. (B)
- 1. (D)
Folding the flat pieces up along their shared edges closes them into a cylinder.
- 2. (D)
MEANT needs the letter E, which is not in INFORMATION. The other three use only letters that INFORMATION has.
- 3. (B)
Choose any 2 of the 4 horizontal lines and any 2 of the 4 vertical ones: 6 × 6 = 36.
- 4. (D)
There are 3 points along the base, and every pair of them gives one triangle: (3 × 2) ÷ 2 = 3.
- 5. (D)
10:45 a.m. plus 3 h 45 min carries past noon to 2:30 p.m.
- 6. (B)
Reading 36217 digit by digit against the table gives ~=@+%.
- 7. (B)
Going East 140 m and later West 80 m and 60 m cancels out exactly, because 80 + 60 = 140. Only the two northward walks are left: 60 + 80 = 140 m.
- 8. (C)
A mirror held at the side swaps left and right but keeps top and bottom the same way up.
- 9. (B)
144, 36, 81 are all square numbers; 130 is not.
- 10. (C)
October has 31 days, so from 7 October to 19 November is 24 + 19 = 43 days. 43 = 6 weeks and 1 day, so count 1 on from Saturday: Sunday.
- 11. (B)
A fathom is the distance between the fingertips of the two arms stretched out sideways. Such units differ from person to person, which is why standard units like the metre were agreed.
- 12. (B)
Ghee is rich in fat, which stores energy for later and keeps the body warm.
- 13. (B)
Mars is the red planet, whose soil is rich in iron.
- 14. (C)
The pine has a cone shape with needle-shaped leaves, which lets snow slide off instead of piling up and breaking the branches.
- 15. (B)
Iron makes the red colouring matter of the blood.
- 16. (A)
That statement is wrong — a tree has one hard woody trunk that branches high up; the soft-stemmed plant is a herb. The other three are true.
- 17. (D)
An earthen pot is made of clay.
- 18. (D)
Neem is a tree.
- 19. (C)
A money plant is a climber.
- 20. (A)
Earth is the only planet known to carry life.
- 21. (C)
The normal temperature of a healthy human body on the Fahrenheit scale is 98.6 °F.
- 22. (A)
A saturated solution is a solution that can dissolve no more of that solid at that temperature.
- 23. (A)
The order outwards from the Sun is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, so Mercury is the neighbour asked for.
- 24. (A)
Oxygen is about 21 parts in every hundred of the air. Nitrogen is about four fifths of it and oxygen about a fifth.
- 25. (D)
Mustard completes its whole life cycle in one season or one year, so it is an annual plant.
- 26. (B)
Using LED bulbs saves electricity, by giving out the same light for far less power.
- 27. (A)
The step before "make a guess that could answer the question" is to observe something carefully and ask a question about it.
- 28. (A)
The width of your thumbnail is about the size a millimetre is meant for.
- 29. (D)
The solvent is the liquid that does the dissolving.
- 30. (B)
The test for starch gives a blue-black colour.
- 31. (B)
Going outwards from the Sun the planets run Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, so the sixth is Saturn.
- 32. (B)
An asteroid is one of the rocky bodies in the belt between Mars and Jupiter.
- 33. (C)
Evaporation a dissolved solid from the solution it is dissolved in — for instance, getting salt out of sea water.
- 34. (C)
Bone and tooth decay is the deficiency disease of calcium.
- 35. (D)
Winnowing light husk from heavy grain, using moving air, as in pouring grain and husk from a height in a breeze.
- 36. (B)
Fat is tested by rubbing the food on a sheet of plain paper, which gives an oily patch that light passes through.
- 37. (C)
A laboratory thermometer reads –10 °C to 110 °C, because it is for measuring the temperature of things being tested in a laboratory.
- 38. (B)
In freezing, a liquid is cooled until it turns into a solid. An example is water becoming ice in a freezer.
- 39. (A)
Astronomy is the study of the stars, planets and other objects beyond the Earth.
- 40. (A)
Rohan's position does not change compared with the floor of the lift, which moves along too, but it keeps changing compared with the ground floor of the building. Whether something is moving depends on the reference point.
- 41. (D)
The length of a pencil is measured in centimetres (cm).
- 42. (A)
Too little iodine causes goitre, whose sign is a swelling at the front of the neck.
- 43. (C)
Sunlight is a rich source of vitamin D, which helps the body use calcium to harden bones and teeth.
- 44. (D)
Geology is the study of the rocks the Earth is made of and how they formed.
- 45. (D)
A camel has long legs and a hump that stores fat, which keeps its body clear of the hot sand and stores food for lean days.
- 46. (C)
Statement I is true. Statement II is wrong — the body cannot make vitamin C at all; it has to come from food.
- 47. (A)
(ii), (iii) and (iv) are true. (i) is wrong — burning coal adds smoke and gases to the air; cleaner sources are wind, water and sunlight.
- 48. (C)
A thread laid along the line and then straightened on a scale — measuring the length of a curved line; A measuring tape — measuring a long length, or one that bends round an object; A metre scale — measuring a straight length shorter than a metre; A divider and a scale — carrying a small distance off a drawing onto a scale.
- 49. (A)
(i) is false — translucent things let some light through but you cannot see clearly through them.
- 50. (B)
A kitchen ladle — steel; The wire inside an electric cable — copper; A window pane — glass; A vest — cotton.
About this mock test
- Is this ISO Class 6 mock test really free, with no login?
- Yes. The whole paper is on this page: no account, no sign-up, no phone number and no ads. Nothing your child answers here is sent anywhere or stored.
- How is it marked?
- The same way as the SOF paper: Logical Reasoning 1 mark a question, Science 1 mark a question, Achievers Section 3 marks a question, 60 marks in all. Press Finish and mark to see the score by section and the right answer, with an explanation, under every question.
- Can I print it?
- Yes. Print paper + OMR sheet lays it out like the real paper, with a bubble sheet and the answer key on its own last page so it can be set aside. Choose Save as PDF in the print dialog to keep a copy.
- Is it the same as the real ISO paper?
- It has the real paper's shape — 50 questions, the same sections in the same order, the same marks and the same 60 minutes — and its questions come from the ISO Class 6 syllabus. The questions are Sprinto's own, not SOF's; Sprinto is not affiliated with the Science Olympiad Foundation.
Fresh questions every time
This paper stays the same so it can be printed and shared. In the app every ISO Class 6 question is new, the next one is picked to be just hard enough, and mistakes come back until they stick. Still free.