Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 148 · 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) shadow length (b) the same spot (c) the time of day
2. 2.⚖️ 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) shadow length (c) the same spot (d) the time of day
3. 3.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
4. 4.⚖️ 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
5. 5.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick walks (d) the stick grows
8. 8.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a battery cell (d) a clock to check
9. 9.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a magnet (d) a straight stick
10. 10.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
11. 11.⚖️ 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 stick kept upright
12. 12.🧺 Do we need a battery cell 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) north (b) up (c) west (d) east
14. 14.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
17. 17.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
18. 18.True or false: clear plastic film is opaque. (a) False (b) True
19. 19.🔦 Which of these is translucent? (a) clear glass (b) a book (c) air (d) tissue paper
20. 20.True or false: a brick is transparent. (a) True (b) False
21. 21.True or false: frosted glass is translucent. (a) True (b) False
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a magnet (d) a clock to check
23. 23.True or false: yeast is needed for the shadow clock. (a) True (b) False
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) a sunny open place (d) a straight stick
25. 25.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
26. 26.⚖️ 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 measure it (c) we change it
27. 27.⚖️ 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 measure it (c) we change it
28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) shows two times (d) works better
29. 29.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
30. 30.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a clock to check
31. 31.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
32. 32.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
33. 33.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
34. 34.True or false: frosted glass is transparent. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) tissue paper (d) oily paper
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
37. 37.🔦 Which of these is translucent? (a) clear plastic film (b) clean water (c) oily paper (d) a steel plate
38. 38.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed

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