Debate Worksheet: Strong and Weak Evidence

Debate lesson 3: Strong and weak evidence · Set 7 · 40 questions

Debater's tip (Relevant, specific, reliable): Relevant: does it talk about the topic of the motion? Specific: does it say exactly who, what, where or how many? “30 of 40 students” beats “lots of students”. Reliable: can we trust where it came from? Records, textbooks and official bodies beat rumours and unsigned posts.

1. 1.🔎 Strong or weak evidence: “My cousin said so.”? (a) strong evidence (b) weak evidence
2. 2.True or false: In a debate on sports periods: “Mangoes grow in summer.” — this is weak because it is not relevant to the topic. (a) True (b) False
3. 3.🔎 Strong or weak evidence: a story you are not sure about? (a) weak evidence (b) strong evidence
4. 4.True or false: In a debate on homework: “Mount Everest is very tall.” — this is weak because its source is not reliable. (a) False (b) True
5. 5.🔎 Strong or weak evidence: a fact from our science textbook? (a) weak evidence (b) strong evidence
6. 6.True or false: a fact from our science textbook is weak evidence. (a) True (b) False
7. 7.True or false: “Lots of people think so.” is weak evidence. (a) True (b) False
8. 8.🔎 Why is this weak evidence? “A lot of water gets wasted somewhere.” (a) not relevant (b) not reliable (c) not specific
9. 9.True or false: an unsigned post with no source is weak evidence. (a) True (b) False
10. 10.🔎 Which source is most reliable in a debate on saving water? (a) a chat forward (b) a guess (c) the city water board (d) an unsigned poster
11. 11.🔎 Why is this weak evidence? In a debate on school gardens: “Cricket is popular in India.” (a) not reliable (b) not specific (c) not relevant
12. 12.True or false: a rumour forwarded in a chat group is strong evidence. (a) False (b) True
13. 13.🔎 Which is more specific? (a) 30 of 40 students (b) lots of students
14. 14.🔎 Strong or weak evidence: a survey of 300 students in our school? (a) weak evidence (b) strong evidence
15. 15.🔎 Why is this weak evidence? In a debate on homework: “Mount Everest is very tall.” (a) not reliable (b) not specific (c) not relevant
16. 16.True or false: “A forwarded message says so.” — this is weak because it is not relevant to the topic. (a) True (b) False
17. 17.🔎 Strong or weak evidence: figures from the city water board? (a) strong evidence (b) weak evidence
18. 18.🔎 Strong or weak evidence: a rumour forwarded in a chat group? (a) weak evidence (b) strong evidence
19. 19.True or false: In a debate on homework: “Mount Everest is very tall.” — this is weak because it is not specific (no who, what or how many). (a) True (b) False
20. 20.🔎 A fact about cricket in a debate on school uniforms is… (a) very specific (b) very strong (c) not relevant
21. 21.🔎 Why is this weak evidence? “My neighbour heard it from someone.” (a) not specific (b) not reliable (c) not relevant
22. 22.🔎 Why is this weak evidence? “I think I dreamt it.” (a) not specific (b) not relevant (c) not reliable
23. 23.🔎 Why is this weak evidence? “Some people say it helps somehow.” (a) not relevant (b) not specific (c) not reliable
24. 24.🔎 Strong or weak evidence: “Everybody knows it.”? (a) weak evidence (b) strong evidence
25. 25.🔎 Strong or weak evidence: the school nurse’s record of sick days? (a) strong evidence (b) weak evidence
26. 26.True or false: “A website with no name says so.” — this is weak because its source is not reliable. (a) True (b) False
27. 27.🔎 Why is this weak evidence? In a debate on sports periods: “Mangoes grow in summer.” (a) not specific (b) not relevant (c) not reliable
28. 28.True or false: In a debate on school gardens: “Cricket is popular in India.” — this is weak because it is not specific (no who, what or how many). (a) False (b) True
29. 29.True or false: “My neighbour heard it from someone.” — this is weak because it is not relevant to the topic. (a) True (b) False
30. 30.True or false: “A website with no name says so.” — this is weak because it is not specific (no who, what or how many). (a) False (b) True
31. 31.🔎 Strong or weak evidence: the school library’s record of books borrowed? (a) weak evidence (b) strong evidence
32. 32.True or false: a story you are not sure about is weak evidence. (a) False (b) True
33. 33.🔎 Why is this weak evidence? “Lots of students like it.” (a) not specific (b) not relevant (c) not reliable
34. 34.True or false: “Lots of students like it.” — this is weak because it is not specific (no who, what or how many). (a) True (b) False
35. 35.True or false: the school nurse’s record of sick days is weak evidence. (a) False (b) True
36. 36.True or false: “I saw it on a random poster once.” — this is weak because it is not relevant to the topic. (a) True (b) False
37. 37.True or false: In a debate on homework: “Mount Everest is very tall.” — this is weak because it is not relevant to the topic. (a) False (b) True
38. 38.True or false: “Everybody knows it.” is strong evidence. (a) True (b) False
39. 39.True or false: the school library’s record of books borrowed is weak evidence. (a) True (b) False
40. 40.True or false: “Some people say it helps somehow.” — this is weak because it is not relevant to the topic. (a) False (b) True

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