Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 533 · 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 not needed for the shadow clock? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a straight stick
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a clock to check (d) a sunny open place
3. 3.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) at night (d) late evening
4. 4.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) your hand (b) a brick (c) tissue paper (d) a steel plate
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) yeast
8. 8.🔦 Which of these is translucent? (a) tissue paper (b) clear glass (c) your hand (d) a book
9. 9.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
10. 10.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
11. 11.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
12. 12.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) air (b) a brick (c) a book (d) a steel plate
14. 14.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
15. 15.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) butter paper (d) a brick
16. 16.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
17. 17.True or false: a steel plate is opaque. (a) False (b) True
18. 18.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
19. 19.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a mirror (d) yeast
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
21. 21.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
22. 22.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
23. 23.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) tissue paper (d) your hand
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 change it (b) we measure it (c) we keep it the same
25. 25.True or false: a book is translucent. (a) False (b) True
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) turmeric powder
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) chalk to mark shadows (d) a clock to check
28. 28.⚖️ 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
29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
32. 32.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
33. 33.🧺 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 clock to check (d) a sunny open place
34. 34.True or false: a balloon is needed for the shadow clock. (a) True (b) False
35. 35.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) smaller (d) coloured
36. 36.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
37. 37.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) frosted glass (d) a book
38. 38.⚖️ 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
39. 39.True or false: clear glass is opaque. (a) False (b) True
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same spot (c) the same stick (d) the stick kept upright

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