Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 558 · 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) round (b) long (c) missing (d) short
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) frosted glass (d) oily paper
4. 4.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
6. 6.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) your hand (b) a book (c) a steel plate (d) tissue paper
8. 8.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
10. 10.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
11. 11.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
12. 12.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
15. 15.🧺 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) a clock to check
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) wear a cap (d) look straight at the Sun
17. 17.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
19. 19.🔦 Which of these is opaque? (a) a book (b) clear glass (c) frosted glass (d) butter paper
20. 20.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
21. 21.🔦 Which of these is translucent? (a) clear plastic film (b) oily paper (c) your hand (d) a brick
22. 22.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
23. 23.⚖️ 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
24. 24.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
25. 25.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) nothing on your head (d) a cap or hat
26. 26.🔍 Which is the odd one out? (a) clean water (b) a brick (c) a steel plate (d) a book
27. 27.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) clear plastic film (d) frosted glass
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) yeast
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) turmeric powder
30. 30.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
31. 31.True or false: a wooden board is opaque. (a) False (b) True
32. 32.🧺 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 balloon (d) a sunny open place
33. 33.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
34. 34.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) turmeric powder (d) yeast
35. 35.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a straight stick (d) a sunny open place
36. 36.🔦 Which of these is transparent? (a) clear plastic film (b) oily paper (c) your hand (d) a brick
37. 37.🔦 Which of these is opaque? (a) tissue paper (b) air (c) frosted glass (d) a wooden board
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) light bends round it (d) an object blocks light
40. 40.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a battery cell (d) chalk to mark shadows

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