Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 648 · 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.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a straight stick
4. 4.⚖️ 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 time of day (c) the stick kept upright
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
6. 6.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a mirror (d) a straight stick
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
9. 9.🔦 Which of these is opaque? (a) frosted glass (b) clear plastic film (c) clear glass (d) a steel plate
10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
11. 11.⚖️ 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) True (b) False
12. 12.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
13. 13.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) nothing on your head (d) a woollen sweater
14. 14.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
16. 16.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
17. 17.🔦 Which of these is transparent? (a) a book (b) butter paper (c) clear plastic film (d) a steel plate
18. 18.True or false: oily paper is translucent. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) a steel plate (d) oily paper
20. 20.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
21. 21.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) clean water (d) a book
22. 22.⚖️ 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
23. 23.🔦 Which of these is opaque? (a) air (b) clean water (c) tissue paper (d) a wooden board
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) yeast
25. 25.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) clear glass (d) a brick
26. 26.🔍 Which is the odd one out? (a) tissue paper (b) a book (c) a brick (d) a steel plate
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
28. 28.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
29. 29.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
30. 30.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
31. 31.⚖️ 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 change it (c) we measure it
32. 32.True or false: a brick is opaque. (a) False (b) True
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
34. 34.True or false: a steel plate is transparent. (a) True (b) False
35. 35.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a clock to check
37. 37.True or false: clean water is transparent. (a) False (b) True
38. 38.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) chalk to mark shadows (d) yeast
39. 39.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it

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