Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 755 · 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 measure it (c) we change it
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
3. 3.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) a balloon (d) a magnet
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a straight stick (d) a clock to check
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a battery cell
6. 6.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
7. 7.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
8. 8.🛟 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
9. 9.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) west (c) north (d) up
10. 10.True or false: yeast is needed for the shadow clock. (a) False (b) True
11. 11.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
12. 12.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.True or false: oily paper is transparent. (a) False (b) True
16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
17. 17.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) shadow length (d) the same stick
19. 19.⚖️ 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
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
21. 21.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
22. 22.True or false: a steel plate is opaque. (a) False (b) True
23. 23.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
24. 24.⚖️ 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
25. 25.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
26. 26.🔦 Which of these is opaque? (a) air (b) clear glass (c) a wooden board (d) oily paper
27. 27.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
28. 28.🔍 Which is the odd one out? (a) clear glass (b) a steel plate (c) a brick (d) a book
29. 29.🔍 Which is the odd one out? (a) clear glass (b) air (c) clean water (d) a brick
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
32. 32.True or false: frosted glass is opaque. (a) False (b) True
33. 33.🔦 Which of these is transparent? (a) a book (b) clean water (c) a steel plate (d) tissue paper
34. 34.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clear glass (d) a wooden board
35. 35.🔦 Which of these is opaque? (a) tissue paper (b) clean water (c) butter paper (d) a steel plate
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) chalk to mark shadows
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same spot (c) the time of day

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