Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 94 · 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) late evening (b) early morning (c) at night (d) around noon
2. 2.⚖️ 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 same stick
3. 3.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) yeast
5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a magnet
7. 7.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a book (d) frosted glass
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) a balloon
9. 9.True or false: your hand is translucent. (a) True (b) False
10. 10.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
11. 11.🔍 Which is the odd one out? (a) oily paper (b) your hand (c) a wooden board (d) a brick
12. 12.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a mirror (d) a straight stick
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a balloon (d) a straight stick
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day
16. 16.True or false: a steel plate is transparent. (a) False (b) True
17. 17.🔦 Which of these is opaque? (a) tissue paper (b) oily paper (c) a steel plate (d) clean water
18. 18.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
19. 19.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
20. 20.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a sunny open place (d) a battery cell
21. 21.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
22. 22.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
23. 23.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a sunny open place
24. 24.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) a clock to check (d) chalk to mark shadows
26. 26.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
27. 27.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
29. 29.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a mirror (d) chalk to mark shadows
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.True or false: clear plastic film is opaque. (a) True (b) False
32. 32.True or false: a book is opaque. (a) True (b) False
33. 33.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
34. 34.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.⚖️ 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) the time of day (c) the same spot (d) shadow length
37. 37.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain
38. 38.True or false: a steel plate is translucent. (a) False (b) True
39. 39.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a balloon (d) yeast
40. 40.🔦 Which of these is transparent? (a) butter paper (b) your hand (c) clean water (d) a book

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