Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 539 · 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? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same spot (c) shadow length (d) the time of day
4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
5. 5.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
6. 6.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
7. 7.🌍 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
8. 8.🔦 Which of these is translucent? (a) a book (b) tissue paper (c) air (d) a steel plate
9. 9.⚖️ 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 spot
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) chalk to mark shadows (d) a sunny open place
11. 11.🧺 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 clock to check
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a sunny open place (d) a straight stick
16. 16.🧺 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) a battery cell
17. 17.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
18. 18.True or false: clear glass is opaque. (a) True (b) False
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a sunny open place (d) a straight stick
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a straight stick (d) chalk to mark shadows
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a clock to check
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a clock to check
23. 23.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) shadow length (d) the stick kept upright
25. 25.True or false: clear plastic film is translucent. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) air
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
29. 29.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
30. 30.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
31. 31.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
32. 32.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) air (d) your hand
33. 33.🔦 Which of these is transparent? (a) a book (b) a wooden board (c) clean water (d) butter paper
34. 34.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) frosted glass (d) clear glass
35. 35.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) a balloon (d) a straight stick
36. 36.🔦 Which of these is transparent? (a) your hand (b) a wooden board (c) air (d) frosted glass
37. 37.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
38. 38.True or false: air is transparent. (a) False (b) True
39. 39.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
40. 40.⚖️ 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

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