Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 336 · 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 stick”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
3. 3.True or false: oily paper is transparent. (a) True (b) False
4. 4.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
5. 5.🔦 Which of these is transparent? (a) a steel plate (b) clean water (c) tissue paper (d) a brick
6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a balloon (d) a battery cell
7. 7.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) telling the time (d) measuring rain
8. 8.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) air (d) frosted glass
9. 9.🌞 When is a stick’s shadow the shortest? (a) late evening (b) around noon (c) early morning (d) at night
10. 10.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
11. 11.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
12. 12.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a balloon (d) chalk to mark shadows
13. 13.True or false: a balloon is needed for the shadow clock. (a) True (b) False
14. 14.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
15. 15.⚖️ 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 stick (c) the time of day
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) a straight stick (d) chalk to mark shadows
18. 18.🔍 Which is the odd one out? (a) air (b) clean water (c) clear plastic film (d) a steel plate
19. 19.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
20. 20.⚖️ 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
21. 21.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) clear glass (d) butter paper
22. 22.⚖️ 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
23. 23.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
24. 24.🔦 Which of these is opaque? (a) air (b) tissue paper (c) a brick (d) butter paper
25. 25.True or false: air is transparent. (a) True (b) False
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) yeast (d) a clock to check
27. 27.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
28. 28.⚖️ 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
29. 29.🔦 Which of these is opaque? (a) clear plastic film (b) a book (c) oily paper (d) clear glass
30. 30.🛟 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
31. 31.🧺 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) yeast
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place
33. 33.🧺 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 sunny open place (d) a battery cell
34. 34.⚖️ 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 change it (c) we measure it
35. 35.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
36. 36.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a mirror (d) a battery cell
37. 37.True or false: butter paper is transparent. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the stick kept upright (c) the same stick (d) the time of day
40. 40.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east

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