Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 316 · 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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
2. 2.🔍 Which is the odd one out? (a) air (b) tissue paper (c) frosted glass (d) oily paper
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.⚖️ 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
5. 5.⚖️ 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 time of day (c) the same stick (d) shadow length
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
7. 7.⚖️ 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
8. 8.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
9. 9.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
10. 10.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
11. 11.True or false: clear glass is opaque. (a) False (b) True
12. 12.True or false: butter paper is transparent. (a) False (b) True
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
14. 14.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a woollen sweater (c) a cap or hat (d) nothing on your head
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
16. 16.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
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 measure it (b) we keep it the same (c) we change it
18. 18.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a magnet (d) a battery cell
19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a clock to check (d) a sunny open place
20. 20.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) yeast (d) a balloon
21. 21.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day
23. 23.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) a brick (b) frosted glass (c) butter paper (d) oily paper
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
26. 26.🔍 Which is the odd one out? (a) butter paper (b) a wooden board (c) your hand (d) a brick
27. 27.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning
28. 28.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a straight stick
30. 30.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a book (d) clear plastic film
33. 33.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
34. 34.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a mirror
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
36. 36.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) at night (d) early morning
37. 37.⚖️ 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
38. 38.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
39. 39.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
40. 40.🔦 Which of these is opaque? (a) air (b) your hand (c) butter paper (d) clear glass

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