Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 77 · 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? Which of these is the one thing we change? (a) the same spot (b) the time of day (c) the stick kept upright (d) the same stick
2. 2.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) oily paper (d) a book
4. 4.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
5. 5.🧺 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 straight stick (d) yeast
6. 6.🔦 Which of these is opaque? (a) a wooden board (b) clean water (c) air (d) clear plastic film
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a mirror
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 keep it the same (b) we measure it (c) we change it
9. 9.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
10. 10.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) shows two times (d) runs faster
12. 12.🔦 Which of these is translucent? (a) clear glass (b) butter paper (c) a brick (d) a book
13. 13.🧺 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) turmeric powder (d) a straight stick
14. 14.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
15. 15.True or false: butter paper is translucent. (a) False (b) True
16. 16.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) west (d) north
17. 17.⚖️ 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) True (b) False
18. 18.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) nothing on your head (d) a raincoat
19. 19.True or false: a steel plate is transparent. (a) False (b) True
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a clock to check (d) a straight stick
21. 21.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
22. 22.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
23. 23.🔦 Which of these is transparent? (a) frosted glass (b) a brick (c) a book (d) air
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 straight stick (d) a mirror
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a battery cell (d) a clock to check
27. 27.🧺 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 balloon (d) a clock to check
28. 28.True or false: tissue paper is transparent. (a) True (b) False
29. 29.True or false: clear plastic film is translucent. (a) False (b) True
30. 30.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
31. 31.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.🔦 Which of these is opaque? (a) tissue paper (b) oily paper (c) a brick (d) clean water
34. 34.⚖️ 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
35. 35.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
36. 36.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a balloon (d) a magnet
39. 39.🔍 Which is the odd one out? (a) a steel plate (b) clear plastic film (c) clean water (d) air
40. 40.⚖️ 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

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