Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 360 · 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.📝 What does “evidence” mean? (a) facts that support it (b) a rumour (c) a guess (d) a loud opinion
3. 3.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
4. 4.🧩 The film starts at 2 PM and lasts 2 hours. When does it end? (a) 4 PM (b) 5 PM (c) 2 PM (d) not enough info
5. 5.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
6. 6.🧩 The film starts at 4 PM and lasts 2 hours. When does it end? (a) 4 PM (b) 7 PM (c) 6 PM (d) not enough info
7. 7.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) enough evidence (b) not enough evidence
8. 8.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) not enough evidence (b) enough evidence
9. 9.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” does not give enough evidence. (a) True (b) False
10. 10.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
11. 11.📊 Which gives the best evidence about the class’s favourite game? (a) asking the whole class (b) asking your pet (c) guessing (d) asking one friend
12. 12.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, mangoes match (b) yes, it is certain (c) no mango is sweet (d) no, check more
13. 13.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) False (b) True
14. 14.🔬 Why do scientists repeat an experiment? (a) to change answers (b) for fun only (c) to be sure of results (d) to waste time
15. 15.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
16. 16.🧩 The film starts at 5 PM. It is a long film. When does it end? (a) 8 PM (b) 7 PM (c) 6 PM (d) not enough info
17. 17.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
18. 18.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 5 PM (b) not enough info (c) 3 PM (d) 4 PM
19. 19.🧩 Tara bought 2 pens and a water bottle for ₹120 in all. Each pen cost the same. What did one pen cost? (a) ₹60 (b) ₹120 (c) ₹118 (d) not enough info
20. 20.🧩 Meera bought 4 markers and a lunch box for ₹120 in all. Each marker cost the same. What did one marker cost? (a) ₹120 (b) not enough info (c) ₹116 (d) ₹30
21. 21.True or false: “We checked all 40 mangoes in the box; every one was ripe.” gives enough evidence. (a) True (b) False
22. 22.🧩 A box of laddoos has 7 in each row. How many laddoos are in the box? (a) not enough info (b) 70 (c) 7 (d) 14
23. 23.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) 5 PM (b) not enough info (c) 6 PM (d) 4 PM
24. 24.🧩 A box has 5 rows of mangoes, with 4 in each row. How many mangoes are in the box? (a) 24 (b) 20 (c) 9 (d) not enough info
25. 25.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
26. 26.🧩 Aarav bought 6 kites for ₹240 in all. Each kite cost the same. What did one kite cost? (a) ₹40 (b) ₹45 (c) not enough info (d) ₹240
27. 27.🧩 A box has 8 rows of mangoes, with 9 in each row. How many mangoes are in the box? (a) 81 (b) 72 (c) not enough info (d) 17
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.True or false: “A dog barked at me once, so all dogs are mean.” gives enough evidence. (a) False (b) True
30. 30.🧩 A box has 3 rows of apples, with 7 in each row. How many apples are in the box? (a) 10 (b) 21 (c) not enough info (d) 28
31. 31.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
32. 32.🧩 Tara is 10 years old. Rohan is 9 years older than Tara. How old is Rohan? (a) not enough info (b) 20 (c) 19 (d) 9
33. 33.🧩 Saanvi is 6 years old. Diya is older than Saanvi. How old is Diya? (a) 11 (b) 7 (c) not enough info (d) 8
34. 34.🧩 A box of oranges has 8 in each row. How many oranges are in the box? (a) not enough info (b) 8 (c) 80 (d) 16
35. 35.🧩 A box of laddoos has 6 in each row. How many laddoos are in the box? (a) 60 (b) 6 (c) 12 (d) not enough info
36. 36.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) False (b) True
37. 37.🧩 Vihaan bought 2 notebooks and a cap for ₹160 in all. Each notebook cost the same. What did one notebook cost? (a) ₹158 (b) not enough info (c) ₹160 (d) ₹80
38. 38.🧩 Enough evidence or not? “We tested 20 seeds, and 18 of them sprouted.” (a) enough evidence (b) not enough evidence
39. 39.🧩 Kabir is 8 years old. Diya is older than Kabir. How old is Diya? (a) not enough info (b) 9 (c) 13 (d) 10
40. 40.🧩 A box has 6 rows of oranges, with 8 in each row. How many oranges are in the box? (a) 48 (b) 14 (c) not enough info (d) 56

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