Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 383 · 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.⚖️ 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
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
3. 3.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) your hand (d) frosted glass
4. 4.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a sunny open place (c) a mirror (d) a magnet
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) yeast (c) chalk to mark shadows (d) a straight stick
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a balloon
7. 7.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
8. 8.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
9. 9.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a magnet (d) a sunny open place
12. 12.🔦 Which of these is opaque? (a) tissue paper (b) butter paper (c) your hand (d) oily paper
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) a straight stick (d) chalk to mark shadows
14. 14.⚖️ 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 same spot
15. 15.⚖️ 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
16. 16.True or false: a steel plate is transparent. (a) True (b) False
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
18. 18.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
19. 19.True or false: a magnet is needed for the shadow clock. (a) True (b) False
20. 20.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
21. 21.True or false: yeast is needed for the shadow clock. (a) True (b) False
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
23. 23.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
24. 24.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) a book (d) oily paper
25. 25.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
26. 26.🧺 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
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
28. 28.⚖️ 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
29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
30. 30.📘 Why does a shadow form? (a) the object is cold (b) an object blocks light (c) light bends round it (d) the ground is dark
31. 31.🔍 Which is the odd one out? (a) clean water (b) oily paper (c) frosted glass (d) butter paper
32. 32.🔍 Which is the odd one out? (a) a book (b) a brick (c) a wooden board (d) clear plastic film
33. 33.True or false: yeast is not needed for the shadow clock. (a) True (b) False
34. 34.True or false: a book is translucent. (a) False (b) True
35. 35.⚖️ 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 keep it the same (c) we change it
36. 36.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
37. 37.🔍 Which is the odd one out? (a) a brick (b) your hand (c) a book (d) clear glass
38. 38.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) late evening (d) around noon
39. 39.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
40. 40.🔦 Which of these is opaque? (a) clear glass (b) butter paper (c) tissue paper (d) a brick

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