Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 872 · 40 questions

Thinking tip (Enough facts, then decide): Not enough evidence: “One mango was sour, so all are sour.” Enough: “We checked all 40 mangoes; every one was ripe.” Before you answer, check every fact you need is given. 7 rows with 9 in each → 7 × 9 = 63. “A box has 9 in each row” with no number of rows → not enough info. Missing facts hide in words like “and a bag”, “older” (by how much?) and “a long film” (how long?).

1. 1.🧩 Enough evidence or not? “We tried the new route for 10 days, and it was faster every day.” (a) not enough evidence (b) enough evidence
2. 2.🔬 Why do scientists repeat an experiment? (a) to change answers (b) to be sure of results (c) to waste time (d) for fun only
3. 3.True or false: “My friend didn’t like the book, so the book is bad for everyone.” gives enough evidence. (a) False (b) True
4. 4.🧩 Before solving a word problem, first check… (a) your handwriting (b) what facts are given (c) the page number (d) the colour of ink
5. 5.🧩 A box of eggs has 6 in each row. How many eggs are in the box? (a) 12 (b) 6 (c) 60 (d) not enough info
6. 6.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
7. 7.🧩 Enough evidence or not? “My friend didn’t like the book, so the book is bad for everyone.” (a) not enough evidence (b) enough evidence
8. 8.🧩 A box has 5 rows of oranges, with 4 in each row. How many oranges are in the box? (a) 9 (b) 20 (c) 24 (d) not enough info
9. 9.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) True (b) False
10. 10.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) not enough info (b) 2 PM (c) 5 PM (d) 4 PM
11. 11.🧩 Arjun is 11 years old. Tara is 7 years older than Arjun. How old is Tara? (a) 7 (b) not enough info (c) 18 (d) 19
12. 12.🧩 Aarav is 9 years old. Tara is 8 years older than Aarav. How old is Tara? (a) 18 (b) 17 (c) not enough info (d) 8
13. 13.📝 What does “evidence” mean? (a) a loud opinion (b) a rumour (c) facts that support it (d) a guess
14. 14.🧩 The film starts at 6 PM and lasts 3 hours. When does it end? (a) not enough info (b) 9 PM (c) 10 PM (d) 6 PM
15. 15.🧩 Arjun is 6 years old. Kabir is older than Arjun. How old is Kabir? (a) 8 (b) not enough info (c) 11 (d) 7
16. 16.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) enough evidence (b) not enough evidence
17. 17.🧩 The film starts at 4 PM and lasts 3 hours. When does it end? (a) 7 PM (b) 8 PM (c) 4 PM (d) not enough info
18. 18.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
19. 19.🧩 A box of mangoes has 7 in each row. How many mangoes are in the box? (a) 7 (b) 70 (c) 14 (d) not enough info
20. 20.🧩 Vihaan bought 5 balls for ₹125 in all. Each ball cost the same. What did one ball cost? (a) not enough info (b) ₹30 (c) ₹125 (d) ₹25
21. 21.🧩 Nisha bought 4 pens and a cap for ₹100 in all. Each pen cost the same. What did one pen cost? (a) ₹100 (b) ₹25 (c) not enough info (d) ₹96
22. 22.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
23. 23.📊 Which gives the best evidence about the class’s favourite game? (a) asking your pet (b) guessing (c) asking the whole class (d) asking one friend
24. 24.🧩 Vihaan bought 2 markers for ₹40 in all. Each marker cost the same. What did one marker cost? (a) ₹20 (b) not enough info (c) ₹25 (d) ₹40
25. 25.True or false: “My friend didn’t like the book, so the book is bad for everyone.” does not give enough evidence. (a) True (b) False
26. 26.🧩 A box of laddoos has 9 in each row. How many laddoos are in the box? (a) 18 (b) 90 (c) not enough info (d) 9
27. 27.True or false: “One student said the canteen food was cold, so it is always cold.” does not give enough evidence. (a) False (b) True
28. 28.True or false: “We tested 20 seeds, and 18 of them sprouted.” does not give enough evidence. (a) False (b) True
29. 29.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
30. 30.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) dogs hate you (c) that one dog barked (d) all dogs are mean
31. 31.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) False (b) True
32. 32.🧩 The film starts at 2 PM and lasts 1 hour. When does it end? (a) 2 PM (b) 3 PM (c) 4 PM (d) not enough info
33. 33.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
34. 34.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) True (b) False
35. 35.🧩 Aarav bought 4 notebooks and a water bottle for ₹140 in all. Each notebook cost the same. What did one notebook cost? (a) not enough info (b) ₹136 (c) ₹35 (d) ₹140
36. 36.🧩 A box of laddoos has 8 in each row. How many laddoos are in the box? (a) 8 (b) 16 (c) 80 (d) not enough info
37. 37.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) no mango is sweet (b) yes, mangoes match (c) yes, it is certain (d) no, check more
38. 38.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) False (b) True
39. 39.🧩 A box of oranges has 5 in each row. How many oranges are in the box? (a) 50 (b) not enough info (c) 10 (d) 5
40. 40.🧩 A box of apples has 4 in each row. How many apples are in the box? (a) 4 (b) 40 (c) 8 (d) not enough info

Free critical thinking lessons, practice and worksheets at talentjr.in/critical-thinking-for-kids