Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 653 · 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.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) a brick (d) tissue paper
2. 2.⚖️ 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
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
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 time of day (b) the same spot (c) shadow length (d) the stick kept upright
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
6. 6.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) turmeric powder (d) yeast
7. 7.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
8. 8.⚖️ 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 measure it (c) we keep it the same
9. 9.🔦 Which of these is opaque? (a) oily paper (b) clear glass (c) a brick (d) frosted glass
10. 10.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a mirror (d) a clock to check
11. 11.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
13. 13.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
18. 18.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) turmeric powder (d) a clock to check
19. 19.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
20. 20.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) frosted glass (d) oily paper
21. 21.⚖️ 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 stick kept upright
22. 22.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
23. 23.True or false: air is translucent. (a) False (b) True
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a clock to check (d) chalk to mark shadows
25. 25.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
26. 26.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
27. 27.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
28. 28.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
29. 29.🔦 Which of these is transparent? (a) frosted glass (b) clear glass (c) tissue paper (d) oily paper
30. 30.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
31. 31.⚖️ 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
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
34. 34.True or false: tissue paper is translucent. (a) False (b) True
35. 35.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
36. 36.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
37. 37.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a balloon (d) a sunny open place
38. 38.True or false: frosted glass is opaque. (a) True (b) False
39. 39.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) chalk to mark shadows (d) a clock to check

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