Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 109 · 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? True or false: the same spot is kept the same. (a) True (b) False
2. 2.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
3. 3.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
4. 4.⚖️ 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
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the time of day (c) the same spot (d) the same stick
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a sunny open place
7. 7.🔦 Which of these is translucent? (a) a brick (b) clear plastic film (c) clear glass (d) frosted glass
8. 8.⚖️ 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
9. 9.🔍 Which is the odd one out? (a) oily paper (b) clear plastic film (c) clear glass (d) clean water
10. 10.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) chalk to mark shadows (d) turmeric powder
11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) turmeric powder (d) a sunny open place
12. 12.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
13. 13.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
14. 14.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) shows two times (d) runs faster
16. 16.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
18. 18.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) nothing on your head (d) a raincoat
19. 19.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a straight stick (c) a clock to check (d) a sunny open place
20. 20.⚖️ 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
21. 21.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
22. 22.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
23. 23.True or false: a wooden board is transparent. (a) True (b) False
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
25. 25.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a sunny open place (d) a straight stick
27. 27.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
28. 28.🔦 Which of these is transparent? (a) a wooden board (b) a brick (c) butter paper (d) clear glass
29. 29.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
30. 30.⚖️ 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
31. 31.🔦 Which of these is transparent? (a) butter paper (b) a wooden board (c) a brick (d) clean water
32. 32.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
33. 33.True or false: oily paper is transparent. (a) False (b) True
34. 34.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
35. 35.⚖️ 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 stick
36. 36.⚖️ 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 stick kept upright (c) the same stick (d) the time of day
37. 37.⚖️ 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
38. 38.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
39. 39.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
40. 40.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed

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