Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 480 · 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.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
2. 2.⚖️ 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 spot (b) the time of day (c) the same stick (d) shadow length
3. 3.True or false: frosted glass is translucent. (a) True (b) False
4. 4.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) air (d) a wooden board
6. 6.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
7. 7.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.⚖️ 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
10. 10.⚖️ 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) True (b) False
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) chalk to mark shadows
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
13. 13.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) turmeric powder (d) a balloon
14. 14.⚖️ 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) True (b) False
15. 15.🔦 Which of these is opaque? (a) tissue paper (b) clear plastic film (c) oily paper (d) your hand
16. 16.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
17. 17.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
18. 18.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
19. 19.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
21. 21.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) butter paper (d) air
22. 22.True or false: tissue paper is opaque. (a) True (b) False
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) the time of day (d) shadow length
24. 24.True or false: your hand is opaque. (a) False (b) True
25. 25.🔦 Which of these is translucent? (a) your hand (b) butter paper (c) a book (d) clear glass
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) a straight stick (d) a clock to check
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a mirror (d) a sunny open place
31. 31.True or false: clear plastic film is opaque. (a) False (b) True
32. 32.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
33. 33.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
34. 34.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
38. 38.🛟 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
39. 39.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a magnet (d) yeast
40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing

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