Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 668 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
2. 2.🧺 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 battery cell (d) a sunny open place
3. 3.🔦 Which of these is opaque? (a) clear plastic film (b) oily paper (c) a wooden board (d) clean water
4. 4.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
5. 5.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) yeast (d) turmeric powder
6. 6.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
7. 7.🌍 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
8. 8.⚖️ 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
9. 9.🔦 Which of these is transparent? (a) a steel plate (b) a book (c) clear glass (d) frosted glass
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
11. 11.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a magnet (d) a mirror
12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) east (d) north
13. 13.🔍 Which is the odd one out? (a) clean water (b) a wooden board (c) clear glass (d) clear plastic film
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a clock to check
15. 15.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) a clock to check (d) a battery cell
16. 16.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
17. 17.⚖️ 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
18. 18.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
19. 19.⚖️ 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
20. 20.True or false: a magnet is needed for the shadow clock. (a) False (b) True
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) a balloon
22. 22.🔦 Which of these is translucent? (a) a wooden board (b) your hand (c) tissue paper (d) a steel plate
23. 23.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
24. 24.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
25. 25.⚖️ 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 stick (b) the time of day (c) shadow length (d) the same spot
26. 26.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
27. 27.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
28. 28.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
29. 29.🔦 Which of these is transparent? (a) a steel plate (b) a wooden board (c) clean water (d) butter paper
30. 30.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
31. 31.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
32. 32.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
33. 33.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) at night (d) early morning
34. 34.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
35. 35.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
36. 36.True or false: oily paper is transparent. (a) False (b) True
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) a mirror (d) a straight stick
39. 39.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
40. 40.True or false: a balloon is not needed for the shadow clock. (a) True (b) False

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