Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 146 · 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.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a balloon (d) a sunny open place
2. 2.🧺 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 straight stick
3. 3.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
4. 4.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) chalk to mark shadows (d) yeast
5. 5.🧺 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 clock to check (d) a magnet
6. 6.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
7. 7.⚖️ 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 same spot (c) shadow length
8. 8.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
9. 9.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
10. 10.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
11. 11.🔍 Which is the odd one out? (a) a book (b) frosted glass (c) tissue paper (d) butter paper
12. 12.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
13. 13.🧺 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 battery cell (d) a straight stick
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a sunny open place
15. 15.True or false: a mirror is needed for the shadow clock. (a) False (b) True
16. 16.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
17. 17.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
18. 18.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
19. 19.⚖️ 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) the same stick (c) the time of day (d) shadow length
20. 20.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
22. 22.🔦 Which of these is transparent? (a) oily paper (b) your hand (c) tissue paper (d) clean water
23. 23.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain
24. 24.⚖️ 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
25. 25.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a clock to check (d) a balloon
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
30. 30.🔦 Which of these is opaque? (a) air (b) your hand (c) frosted glass (d) clean water
31. 31.⚖️ 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
32. 32.True or false: a book is translucent. (a) True (b) False
33. 33.True or false: a wooden board is translucent. (a) True (b) False
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) shadow length (c) the time of day (d) the stick kept upright
35. 35.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
36. 36.⚖️ 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
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) yeast (c) a battery cell (d) a balloon
40. 40.True or false: yeast is not needed for the shadow clock. (a) False (b) True

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