Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 205 · 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.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a book (d) oily paper
2. 2.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
4. 4.⚖️ 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
5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
6. 6.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) a brick (d) butter paper
7. 7.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
8. 8.True or false: a brick is transparent. (a) False (b) True
9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
10. 10.🔦 Which of these is translucent? (a) frosted glass (b) a steel plate (c) a wooden board (d) clean water
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
12. 12.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) butter paper (d) a wooden board
13. 13.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
14. 14.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a sunny open place
16. 16.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a battery cell (d) turmeric powder
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) yeast (c) chalk to mark shadows (d) a straight stick
18. 18.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
19. 19.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
20. 20.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) butter paper (d) air
21. 21.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a mirror (d) a sunny open place
22. 22.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) clear glass (d) butter paper
25. 25.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
26. 26.True or false: a brick is opaque. (a) True (b) False
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) a straight stick (d) a sunny open place
28. 28.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
29. 29.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
30. 30.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
31. 31.⚖️ 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
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a mirror
33. 33.True or false: yeast is not needed for the shadow clock. (a) False (b) True
34. 34.⚖️ 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) shadow length (c) the time of day (d) the same spot
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a book (d) clean water
37. 37.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) a magnet (d) a clock to check
38. 38.True or false: a balloon is needed for the shadow clock. (a) False (b) True
39. 39.⚖️ 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
40. 40.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed

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