Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 519 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same spot (d) the same stick
4. 4.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a mirror
5. 5.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
6. 6.🔍 Which is the odd one out? (a) air (b) a book (c) clear glass (d) clean water
7. 7.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
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 keep it the same (c) we measure it
9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
10. 10.⚖️ 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
11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
12. 12.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) a book (b) clean water (c) a brick (d) a wooden board
14. 14.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
15. 15.True or false: a magnet is needed for the shadow clock. (a) True (b) False
16. 16.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) turmeric powder (d) yeast
17. 17.⚖️ 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
18. 18.⚖️ 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 spot (c) shadow length
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a book (b) air (c) a steel plate (d) a wooden board
21. 21.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
22. 22.True or false: a balloon is needed for the shadow clock. (a) False (b) True
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a mirror (d) chalk to mark shadows
24. 24.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) oily paper (d) air
26. 26.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) clear glass
27. 27.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
28. 28.True or false: a wooden board is opaque. (a) False (b) True
29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a magnet (d) chalk to mark shadows
31. 31.True or false: tissue paper is opaque. (a) True (b) False
32. 32.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
33. 33.⚖️ 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
34. 34.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
36. 36.🧺 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 sunny open place (d) turmeric powder
37. 37.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
38. 38.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same stick (c) the time of day (d) shadow length
40. 40.🔦 Which of these is opaque? (a) oily paper (b) a steel plate (c) clear plastic film (d) frosted glass

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