Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 183 · 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 of these is needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a balloon (d) a battery cell
2. 2.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
3. 3.⚖️ 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
4. 4.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) at night (d) early morning
5. 5.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) turmeric powder (d) a battery cell
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) shows two times (d) runs faster
7. 7.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) turmeric powder
9. 9.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.🔦 Which of these is transparent? (a) butter paper (b) clear glass (c) frosted glass (d) a steel plate
12. 12.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
13. 13.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
14. 14.True or false: frosted glass is translucent. (a) False (b) True
15. 15.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
16. 16.🔦 Which of these is translucent? (a) a wooden board (b) a brick (c) frosted glass (d) clear plastic film
17. 17.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a balloon (d) turmeric powder
18. 18.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
19. 19.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
20. 20.🔦 Which of these is transparent? (a) frosted glass (b) clean water (c) a steel plate (d) butter paper
21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
22. 22.🔦 Which of these is opaque? (a) clear glass (b) your hand (c) clean water (d) air
23. 23.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
24. 24.True or false: a wooden board is opaque. (a) True (b) False
25. 25.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
26. 26.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) a wooden board (d) clear plastic film
27. 27.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
28. 28.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a clock to check
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a straight stick
31. 31.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
32. 32.⚖️ 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 same stick (c) shadow length (d) the stick kept upright
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
35. 35.🛟 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
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 keep it the same (b) we measure it (c) we change it
37. 37.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) butter paper (b) clean water (c) frosted glass (d) oily paper
39. 39.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) weighing things (d) making rainbows
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place

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