Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 119 · 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.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a battery cell
3. 3.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) a clock to check (d) a sunny open place
5. 5.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) at night (d) late evening
6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
8. 8.True or false: a wooden board is opaque. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) clear plastic film (b) butter paper (c) frosted glass (d) tissue paper
10. 10.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
11. 11.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
12. 12.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
13. 13.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) a magnet
15. 15.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
18. 18.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the same spot
20. 20.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) a brick (d) butter paper
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
22. 22.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a balloon (c) a battery cell (d) a sunny open place
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a battery cell
25. 25.True or false: a magnet is needed for the shadow clock. (a) False (b) True
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
27. 27.⚖️ 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) the same spot
28. 28.True or false: your hand is translucent. (a) True (b) False
29. 29.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
30. 30.🔍 Which is the odd one out? (a) clean water (b) a book (c) clear glass (d) air
31. 31.🔍 Which is the odd one out? (a) a brick (b) air (c) clear glass (d) clean water
32. 32.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a balloon (c) turmeric powder (d) a straight stick
33. 33.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
34. 34.🔦 Which of these is opaque? (a) oily paper (b) clear plastic film (c) your hand (d) tissue paper
35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
36. 36.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
37. 37.⚖️ 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) False (b) True
38. 38.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
39. 39.⚖️ 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) the stick kept upright (c) the same stick (d) shadow length
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True

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