Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 231 · 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.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
2. 2.🔦 Which of these is opaque? (a) air (b) a brick (c) clear glass (d) tissue paper
3. 3.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) turmeric powder (d) a sunny open place
4. 4.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a sunny open place (d) chalk to mark shadows
6. 6.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
7. 7.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
8. 8.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) your hand (d) clear plastic film
9. 9.🔍 Which is the odd one out? (a) clear glass (b) a wooden board (c) clean water (d) air
10. 10.🔍 Which is the odd one out? (a) oily paper (b) a brick (c) a steel plate (d) a book
11. 11.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
12. 12.⚖️ 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
13. 13.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a battery cell (d) a straight stick
14. 14.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a mirror (d) chalk to mark shadows
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) yeast
18. 18.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) oily paper (d) a wooden board
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a sunny open place (d) a clock to check
21. 21.🔦 Which of these is translucent? (a) a wooden board (b) tissue paper (c) clear glass (d) air
22. 22.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
23. 23.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
24. 24.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a sunny open place (d) chalk to mark shadows
28. 28.True or false: yeast is not needed for the shadow clock. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) air (d) tissue paper
30. 30.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) the stick kept upright (d) shadow length
32. 32.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) chalk to mark shadows (d) a straight stick
34. 34.⚖️ 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
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
36. 36.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
37. 37.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
38. 38.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
39. 39.⚖️ 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
40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long

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