Shadow and Sundial Experiment Worksheet

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

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