Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 295 · 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.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
2. 2.True or false: oily paper is translucent. (a) False (b) True
3. 3.True or false: your hand is translucent. (a) False (b) True
4. 4.🔦 Which of these is opaque? (a) butter paper (b) clear glass (c) clear plastic film (d) a book
5. 5.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east
6. 6.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
7. 7.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a balloon (d) chalk to mark shadows
8. 8.⚖️ 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
9. 9.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
10. 10.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) the ground is dark (d) light bends round it
11. 11.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a sunny open place
14. 14.True or false: your hand is transparent. (a) True (b) False
15. 15.🔦 Which of these is transparent? (a) a steel plate (b) clean water (c) frosted glass (d) your hand
16. 16.🧺 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 mirror (d) a sunny open place
17. 17.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
18. 18.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a balloon (d) a clock to check
20. 20.⚖️ 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
21. 21.True or false: your hand is opaque. (a) True (b) False
22. 22.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a battery cell (d) a straight stick
23. 23.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a magnet (d) a battery cell
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) tissue paper (b) air (c) butter paper (d) frosted glass
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
28. 28.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a magnet (d) chalk to mark shadows
30. 30.⚖️ 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) shadow length (c) the time of day (d) the same spot
31. 31.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
32. 32.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
33. 33.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a battery cell (d) a clock to check
34. 34.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) tissue paper (b) a steel plate (c) oily paper (d) butter paper
37. 37.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
38. 38.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
39. 39.True or false: tissue paper is transparent. (a) True (b) False
40. 40.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque

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