Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 344 · 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.True or false: a magnet is needed for the shadow clock. (a) False (b) True
2. 2.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
3. 3.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
4. 4.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a straight stick (d) turmeric powder
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) missing (d) round
6. 6.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) look straight at the Sun (c) wear a cap (d) mark with chalk
7. 7.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.True or false: a wooden board is translucent. (a) False (b) True
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
11. 11.🔦 Which of these is opaque? (a) clear glass (b) a brick (c) air (d) butter paper
12. 12.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
14. 14.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
15. 15.🔦 Which of these is translucent? (a) butter paper (b) a brick (c) clear glass (d) a book
16. 16.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) shadow length (d) the stick kept upright
19. 19.🧺 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 sunny open place (d) a battery cell
20. 20.🧺 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) a balloon
21. 21.⚖️ 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 time of day (c) shadow length (d) the same spot
22. 22.🔍 Which is the odd one out? (a) oily paper (b) clear plastic film (c) frosted glass (d) butter paper
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a magnet
24. 24.True or false: a mirror is needed for the shadow clock. (a) False (b) True
25. 25.True or false: oily paper is opaque. (a) True (b) False
26. 26.🔦 Which of these is transparent? (a) frosted glass (b) clear glass (c) a brick (d) butter paper
27. 27.🔦 Which of these is transparent? (a) a book (b) butter paper (c) oily paper (d) clear plastic film
28. 28.True or false: a balloon is needed for the shadow clock. (a) False (b) True
29. 29.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) making rainbows (d) telling the time
30. 30.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a battery cell (d) a balloon
31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
32. 32.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
33. 33.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a mirror (d) a sunny open place
35. 35.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
36. 36.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a sunny open place (d) yeast
39. 39.🧺 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) turmeric powder
40. 40.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed

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