Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 193 · 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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
2. 2.⚖️ 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) the stick kept upright (c) shadow length
3. 3.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
4. 4.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
5. 5.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
6. 6.⚖️ 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
7. 7.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same stick
9. 9.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
10. 10.🔍 Which is the odd one out? (a) a book (b) a brick (c) a wooden board (d) air
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
12. 12.True or false: a magnet is needed for the shadow clock. (a) True (b) False
13. 13.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
14. 14.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
15. 15.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🔍 Which is the odd one out? (a) clear glass (b) air (c) clean water (d) butter paper
19. 19.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a balloon (d) a magnet
20. 20.True or false: oily paper is opaque. (a) True (b) False
21. 21.True or false: clear plastic film is transparent. (a) True (b) False
22. 22.True or false: butter paper is translucent. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) your hand (b) a wooden board (c) tissue paper (d) a steel plate
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a battery cell (d) chalk to mark shadows
25. 25.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
26. 26.🔦 Which of these is opaque? (a) a wooden board (b) air (c) clean water (d) tissue paper
27. 27.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
29. 29.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a mirror (d) a straight stick
30. 30.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) frosted glass (d) a steel plate
31. 31.⚖️ 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 same spot (c) the time of day
32. 32.🧺 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 straight stick (d) yeast
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
35. 35.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) telling the time (d) measuring rain
36. 36.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) clean water (d) clear glass
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a sunny open place (d) a straight stick
38. 38.⚖️ 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
39. 39.🔦 Which of these is opaque? (a) clean water (b) your hand (c) clear plastic film (d) butter paper
40. 40.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

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