Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 900 · 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 frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
2. 2.🔍 Which is the odd one out? (a) air (b) clean water (c) clear glass (d) tissue paper
3. 3.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
4. 4.⚖️ 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) False (b) True
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a straight stick (d) chalk to mark shadows
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
9. 9.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
11. 11.⚖️ 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
12. 12.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
13. 13.True or false: air is opaque. (a) True (b) False
14. 14.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
15. 15.⚖️ 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 stick kept upright (c) the time of day (d) the same spot
16. 16.True or false: tissue paper is transparent. (a) True (b) False
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.⚖️ 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
19. 19.⚖️ 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
20. 20.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same spot
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
23. 23.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
24. 24.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
25. 25.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) a cap or hat (d) nothing on your head
26. 26.🔦 Which of these is transparent? (a) a brick (b) tissue paper (c) air (d) a steel plate
27. 27.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a balloon (c) yeast (d) turmeric powder
28. 28.⚖️ 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
29. 29.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) chalk to mark shadows (d) a magnet
30. 30.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) yeast
31. 31.True or false: butter paper is translucent. (a) True (b) False
32. 32.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
33. 33.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
34. 34.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
35. 35.🧺 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 mirror (d) a clock to check
36. 36.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
37. 37.True or false: butter paper is opaque. (a) True (b) False
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
39. 39.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) butter paper

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