Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 82 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) chalk to mark shadows (d) a straight stick
2. 2.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
3. 3.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) works better (c) does not work well (d) shows two times
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
6. 6.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
7. 7.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) tissue paper (d) butter paper
8. 8.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
11. 11.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a straight stick (d) a clock to check
12. 12.🔦 Which of these is translucent? (a) your hand (b) tissue paper (c) clear glass (d) a wooden board
13. 13.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
14. 14.True or false: clear glass is translucent. (a) True (b) False
15. 15.🔦 Which of these is opaque? (a) clean water (b) butter paper (c) frosted glass (d) a brick
16. 16.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
17. 17.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
18. 18.🔍 Which is the odd one out? (a) air (b) butter paper (c) clean water (d) clear plastic film
19. 19.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
20. 20.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
21. 21.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a mirror
23. 23.🔦 Which of these is translucent? (a) oily paper (b) a steel plate (c) air (d) clean water
24. 24.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) a sunny open place (d) a straight stick
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a straight stick (d) chalk to mark shadows
27. 27.⚖️ 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) shadow length (d) the same spot
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
29. 29.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) yeast (d) a sunny open place
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a battery cell
31. 31.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) yeast (d) a battery cell
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a straight stick
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
34. 34.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
35. 35.True or false: air is transparent. (a) False (b) True
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
37. 37.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) frosted glass (b) a brick (c) a wooden board (d) a book
39. 39.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
40. 40.🔦 Which of these is translucent? (a) clean water (b) a steel plate (c) a book (d) frosted glass

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