Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 552 · 40 questions

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

1. 1.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
2. 2.True or false: a brick is opaque. (a) True (b) False
3. 3.🔦 Which of these is transparent? (a) air (b) tissue paper (c) your hand (d) a brick
4. 4.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) frosted glass (d) clean water
5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same stick
7. 7.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
10. 10.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a straight stick
11. 11.True or false: tissue paper is translucent. (a) False (b) True
12. 12.True or false: air is opaque. (a) False (b) True
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a sunny open place
16. 16.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) the same stick (c) shadow length
20. 20.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
21. 21.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
22. 22.True or false: clean water is transparent. (a) True (b) False
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a clock to check
24. 24.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a battery cell (d) a sunny open place
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same spot (c) shadow length (d) the stick kept upright
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
29. 29.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
32. 32.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
33. 33.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
36. 36.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) clear glass (d) your hand
37. 37.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) your hand (d) clean water
38. 38.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a sunny open place
39. 39.🔦 Which of these is translucent? (a) a book (b) tissue paper (c) a brick (d) clear glass
40. 40.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks

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