Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 809 · 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.🧺 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 sunny open place
2. 2.🔍 Which is the odd one out? (a) oily paper (b) clean water (c) butter paper (d) tissue paper
3. 3.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a magnet (c) a battery cell (d) a straight stick
4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) round (c) missing (d) short
5. 5.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) chalk to mark shadows (d) yeast
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
7. 7.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a sunny open place (d) a magnet
8. 8.True or false: a mirror is needed for the shadow clock. (a) False (b) True
9. 9.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
11. 11.🔍 Which is the odd one out? (a) air (b) oily paper (c) clear plastic film (d) clean water
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a straight stick (d) chalk to mark shadows
13. 13.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
14. 14.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
15. 15.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
16. 16.⚖️ 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 change it (c) we measure it
17. 17.⚖️ 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 spot (b) the time of day (c) shadow length (d) the same stick
18. 18.🔍 Which is the odd one out? (a) butter paper (b) a steel plate (c) oily paper (d) frosted glass
19. 19.🔦 Which of these is opaque? (a) clear plastic film (b) frosted glass (c) oily paper (d) a brick
20. 20.🔍 Which is the odd one out? (a) clear plastic film (b) tissue paper (c) frosted glass (d) oily paper
21. 21.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) a sunny open place
23. 23.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a clock to check (c) turmeric powder (d) yeast
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) False (b) True
25. 25.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
26. 26.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
27. 27.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
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 measure it (c) we change it
29. 29.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) bigger (d) coloured
30. 30.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a mirror
31. 31.⚖️ 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) the time of day (c) the same spot (d) shadow length
32. 32.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
33. 33.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
34. 34.True or false: yeast is not needed for the shadow clock. (a) False (b) True
35. 35.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
36. 36.True or false: a book is opaque. (a) False (b) True
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a mirror (d) chalk to mark shadows
38. 38.⚖️ 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
39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
40. 40.True or false: a mirror is not needed for the shadow clock. (a) True (b) False

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