Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 499 · 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) short (b) long (c) missing (d) round
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a clock to check
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) chalk to mark shadows (d) a straight stick
4. 4.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
5. 5.🧺 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 straight stick (d) a battery cell
6. 6.⚖️ 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
7. 7.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
8. 8.🔦 Which of these is transparent? (a) tissue paper (b) clear plastic film (c) a wooden board (d) a brick
9. 9.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) tissue paper (d) butter paper
10. 10.🧺 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 mirror (d) a clock to check
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
12. 12.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a mirror (d) a battery cell
13. 13.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a battery cell (c) a mirror (d) a straight stick
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a clock to check
15. 15.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
16. 16.🔦 Which of these is transparent? (a) butter paper (b) frosted glass (c) air (d) a wooden board
17. 17.🔍 Which is the odd one out? (a) a brick (b) tissue paper (c) frosted glass (d) butter paper
18. 18.🔍 Which is the odd one out? (a) a book (b) clean water (c) your hand (d) a brick
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
20. 20.⚖️ 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
21. 21.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
22. 22.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) a steel plate (b) clean water (c) clear plastic film (d) air
27. 27.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) your hand
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the same spot (d) the stick kept upright
29. 29.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
30. 30.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
31. 31.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
32. 32.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) a straight stick (d) a clock to check
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
34. 34.True or false: a steel plate is translucent. (a) True (b) False
35. 35.True or false: a mirror is needed for the shadow clock. (a) False (b) True
36. 36.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
37. 37.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
39. 39.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
40. 40.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold

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