Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 370 · 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.True or false: a book is opaque. (a) False (b) True
2. 2.⚖️ 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 keep it the same (c) we measure it
3. 3.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the same spot (c) the stick kept upright (d) the time of day
5. 5.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
6. 6.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) tissue paper
7. 7.True or false: a steel plate is transparent. (a) True (b) False
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a sunny open place (d) a clock to check
9. 9.True or false: clear plastic film is translucent. (a) True (b) False
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
11. 11.⚖️ 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) shadow length (c) the stick kept upright
12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) shows two times (d) runs faster
13. 13.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
14. 14.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a straight stick (d) a magnet
15. 15.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
16. 16.True or false: clear glass is translucent. (a) True (b) False
17. 17.True or false: yeast is not needed for the shadow clock. (a) True (b) False
18. 18.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
19. 19.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
20. 20.⚖️ 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) True (b) False
21. 21.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
23. 23.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a mirror (d) chalk to mark shadows
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) a balloon
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) a sunny open place
26. 26.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
27. 27.🔍 Which is the odd one out? (a) a steel plate (b) a book (c) a wooden board (d) butter paper
28. 28.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
29. 29.🔦 Which of these is opaque? (a) oily paper (b) tissue paper (c) frosted glass (d) a wooden board
30. 30.⚖️ 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) True (b) False
31. 31.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
32. 32.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) the stick walks (d) Earth keeps spinning
33. 33.🔍 Which is the odd one out? (a) a book (b) clean water (c) a wooden board (d) a steel plate
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
36. 36.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
37. 37.True or false: tissue paper is translucent. (a) False (b) True
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
40. 40.⚖️ 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 time of day (c) the same stick

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