Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 34 · 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.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
2. 2.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
3. 3.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a magnet (d) a balloon
4. 4.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) yeast
5. 5.True or false: a mirror is needed for the shadow clock. (a) True (b) False
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
7. 7.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a straight stick
9. 9.🧺 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 straight stick (d) yeast
10. 10.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a sunny open place (d) turmeric powder
11. 11.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) early morning (d) late evening
12. 12.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) north (d) west
13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
14. 14.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
15. 15.🔦 Which of these is translucent? (a) clear plastic film (b) air (c) butter paper (d) a brick
16. 16.🔦 Which of these is translucent? (a) a wooden board (b) tissue paper (c) clear glass (d) a book
17. 17.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
18. 18.⚖️ 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
19. 19.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
20. 20.⚖️ 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 same spot (c) the same stick (d) shadow length
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) a clock to check
22. 22.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a steel plate (d) frosted glass
23. 23.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
25. 25.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
26. 26.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
27. 27.⚖️ 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 same spot (c) the time of day (d) the same stick
28. 28.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
29. 29.True or false: frosted glass is opaque. (a) True (b) False
30. 30.⚖️ 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
31. 31.True or false: frosted glass is transparent. (a) False (b) True
32. 32.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a magnet (c) a clock to check (d) a sunny open place
33. 33.⚖️ 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
34. 34.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
35. 35.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
36. 36.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) butter paper (d) a wooden board
37. 37.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a brick (d) butter paper
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) weighing things (d) measuring rain
40. 40.🔦 Which of these is opaque? (a) clear plastic film (b) tissue paper (c) clear glass (d) a steel plate

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