Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 935 · 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 is the odd one out? (a) your hand (b) oily paper (c) frosted glass (d) tissue paper
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
4. 4.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a battery cell (d) chalk to mark shadows
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) turmeric powder (d) a sunny open place
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the same spot (c) shadow length (d) the time of day
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
10. 10.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
11. 11.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
14. 14.🧺 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 balloon (d) chalk to mark shadows
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same stick (d) the stick kept upright
16. 16.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
17. 17.🔦 Which of these is opaque? (a) your hand (b) clear glass (c) frosted glass (d) clear plastic film
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a battery cell
19. 19.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
20. 20.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a straight stick (c) a battery cell (d) turmeric powder
22. 22.🛟 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
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a clock to check (d) a sunny open place
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) a sunny open place (d) a clock to check
26. 26.True or false: a sunny open place 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? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) telling the time (d) weighing things
29. 29.True or false: a wooden board is transparent. (a) False (b) True
30. 30.True or false: clear glass is opaque. (a) True (b) False
31. 31.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
32. 32.True or false: air is transparent. (a) True (b) False
33. 33.True or false: a balloon is needed for the shadow clock. (a) False (b) True
34. 34.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) yeast (c) a clock to check (d) a sunny open place
36. 36.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
37. 37.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
38. 38.True or false: a steel plate is transparent. (a) True (b) False
39. 39.True or false: a steel plate is opaque. (a) False (b) True
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False

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