Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 546 · 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) yeast (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
2. 2.True or false: a wooden board is transparent. (a) True (b) False
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a sunny open place (d) chalk to mark shadows
4. 4.⚖️ 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) True (b) False
5. 5.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a clock to check (d) a straight stick
6. 6.⚖️ 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 time of day (c) shadow length (d) the same stick
7. 7.True or false: oily paper is transparent. (a) False (b) True
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a clock to check (c) a straight stick (d) chalk to mark shadows
9. 9.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) frosted glass (d) clear plastic film
10. 10.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a balloon (d) a battery cell
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) short (d) round
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a magnet (d) a straight stick
13. 13.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
14. 14.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
16. 16.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
17. 17.True or false: tissue paper is translucent. (a) False (b) True
18. 18.🔦 Which of these is opaque? (a) your hand (b) clear glass (c) butter paper (d) frosted glass
19. 19.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
20. 20.⚖️ 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) False (b) True
21. 21.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
22. 22.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a balloon (d) a straight stick
23. 23.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
24. 24.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
25. 25.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a book (d) oily paper
26. 26.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
27. 27.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
28. 28.⚖️ 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
29. 29.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a sunny open place (d) a clock to check
31. 31.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) turmeric powder (d) chalk to mark shadows
36. 36.⚖️ 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
37. 37.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
39. 39.True or false: a brick is opaque. (a) False (b) True
40. 40.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False

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