Scientific Method Worksheet for Kids

Science experiments lesson 29: The scientific method and fair tests · Set 380 · 40 questions

What you do (Ask, guess, test, see, say): 1. Ask a question that an experiment can test. 2. Make a hypothesis: “I think … because …”. 3. Plan a fair test — change one thing, keep the rest the same, decide what to measure — then do it with an adult. 4. Observe and record, then draw a conclusion and share it honestly.

1. 1.⚖️ Why do we change only one thing in a fair test? (a) to make it fun (b) to know what caused it (c) to use less paper (d) to finish faster
2. 2.True or false: “So seeds need water to sprout.” is the conclusion step. (a) True (b) False
3. 3.🔬 Which step of the scientific method is this: “Only the wet-cotton seeds sprouted.” (a) experiment (b) question (c) hypothesis (d) observation
4. 4.🔬 How many steps are there in our scientific method (question to conclusion)?
5. 5.⚖️ Fair test — which kind of ball bounces highest? What do we do with “the drop height”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🛟 Which of these is an unsafe habit? (a) wiping up spills at once (b) asking an adult first (c) touching a hot iron (d) reading the steps first
7. 7.🛟 Before starting any experiment, what is the first safety step? (a) skip the reading (b) ask an adult (c) hide it from adults (d) start right away
8. 8.❓ Which question can be tested by an experiment? (a) which colour is nicest? (b) who is the best friend? (c) is music beautiful? (d) do magnets pull iron?
9. 9.🔬 Which step of the scientific method is this: “My guess: the zigzag holds the most.” (a) experiment (b) conclusion (c) question (d) hypothesis
10. 10.⚖️ Fair test — which kind of ball bounces highest? True or false: the kind of ball is kept the same. (a) True (b) False
11. 11.⚖️ Fair test — which kind of ball bounces highest? True or false: bounce height is what we measure. (a) True (b) False
12. 12.⚖️ Fair test — which kind of ball bounces highest? Which of these is the one thing we change? (a) the kind of ball (b) the drop height (c) the floor surface (d) the person dropping
13. 13.True or false: “Which paper shape holds the most coins?” is the question step. (a) False (b) True
14. 14.🛟 Which of these is an unsafe habit? (a) mixing random liquids (b) asking an adult first (c) wiping up spills at once (d) washing hands afterwards
15. 15.🛟 Is this a safe or an unsafe habit in an experiment: running with glassware? (a) safe (b) unsafe
16. 16.🛟 Which of these is a safe habit? (a) touching a hot iron (b) asking an adult first (c) putting things in mouth (d) running with glassware
17. 17.🔬 In the scientific method, which step number is “make a hypothesis”?
18. 18.⚖️ Fair test — which kind of ball bounces highest? True or false: bounce height is the one thing we change. (a) False (b) True
19. 19.🛟 Which of these is a safe habit? (a) washing hands afterwards (b) mixing random liquids (c) running with glassware (d) working with no adult
20. 20.⚖️ Fair test — which kind of ball bounces highest? Which of these is what we measure? (a) the floor surface (b) the drop height (c) the person dropping (d) bounce height
21. 21.🔬 Which step of the scientific method is this: “Does salt dissolve faster in warm water?” (a) experiment (b) hypothesis (c) question (d) observation
22. 22.⚖️ Fair test — which kind of ball bounces highest? Which of these is kept the same? (a) the floor surface (b) bounce height (c) the kind of ball
23. 23.True or false: “So salt dissolves faster when warm.” is the observation step. (a) False (b) True
24. 24.🔬 Which step of the scientific method is this: “So seeds need water to sprout.” (a) hypothesis (b) experiment (c) conclusion (d) observation
25. 25.⚖️ A child tests plants with and without water, but puts one in the sun and one in a cupboard. Is it a fair test? (a) no, two things changed (b) yes, if done fast (c) yes, it is fair (d) only on Sundays
26. 26.True or false: “Only the wet-cotton seeds sprouted.” is the observation step. (a) False (b) True
27. 27.🔬 Which step of the scientific method is this: “So folding makes paper stronger.” (a) observation (b) conclusion (c) hypothesis (d) experiment
28. 28.🔬 In the scientific method, which step number is “observe and record”?
29. 29.🔬 In the scientific method, which step number is “do the experiment”?
30. 30.⚖️ Fair test — which kind of ball bounces highest? What do we do with “the kind of ball”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.True or false: wiping up spills at once is an unsafe habit. (a) False (b) True
32. 32.True or false: setting up wet and dry cotton with seeds is the conclusion step. (a) False (b) True
33. 33.🛟 Is this a safe or an unsafe habit in an experiment: wiping up spills at once? (a) safe (b) unsafe
34. 34.⚖️ Fair test — which kind of ball bounces highest? Which of these is kept the same? (a) the drop height (b) the kind of ball (c) bounce height
35. 35.🔍 Which is the odd one out? (a) washing hands afterwards (b) wiping up spills at once (c) reading the steps first (d) putting things in mouth
36. 36.🔬 Which step of the scientific method is this: “Warm took 1 minute, cold took 4.” (a) conclusion (b) experiment (c) hypothesis (d) observation
37. 37.⚖️ Fair test — which kind of ball bounces highest? True or false: the drop height is kept the same. (a) False (b) True
38. 38.True or false: touching a hot iron is a safe habit. (a) False (b) True
39. 39.🛟 Which of these is an unsafe habit? (a) asking an adult first (b) working with no adult (c) reading the steps first (d) tying back long hair
40. 40.⚖️ Fair test — which kind of ball bounces highest? What do we do with “bounce height”? (a) we change it (b) we keep it the same (c) we measure it

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