Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 766 · 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.⚖️ 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) shadow length (c) the same stick
2. 2.True or false: frosted glass is translucent. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) butter paper (d) oily paper
4. 4.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same spot (d) the same stick
7. 7.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) tissue paper (d) clean water
8. 8.⚖️ 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
9. 9.🧺 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) turmeric powder
10. 10.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) butter paper (d) air
11. 11.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a balloon (d) yeast
12. 12.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
13. 13.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.True or false: a book is transparent. (a) True (b) False
16. 16.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the ground slides (d) the stick grows
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.True or false: yeast is not needed for the shadow clock. (a) False (b) True
19. 19.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
21. 21.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
22. 22.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
23. 23.🔦 Which of these is opaque? (a) a steel plate (b) clear glass (c) clean water (d) butter paper
24. 24.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) around noon (d) late evening
25. 25.🔦 Which of these is translucent? (a) a brick (b) clean water (c) oily paper (d) a steel plate
26. 26.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.🔦 Which of these is transparent? (a) a wooden board (b) butter paper (c) a brick (d) air
28. 28.🔍 Which is the odd one out? (a) a wooden board (b) clear glass (c) a steel plate (d) a brick
29. 29.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
30. 30.True or false: butter paper is translucent. (a) True (b) False
31. 31.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
32. 32.🛟 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
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) chalk to mark shadows (d) a sunny open place
35. 35.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
36. 36.⚖️ 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 same spot
37. 37.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
38. 38.🔦 Which of these is opaque? (a) clear plastic film (b) air (c) a brick (d) oily paper
39. 39.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
40. 40.🔦 Which of these is translucent? (a) a wooden board (b) clean water (c) clear glass (d) tissue paper

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