Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 414 · 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 sunny open place (b) a clock to check (c) a mirror (d) chalk to mark shadows
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 same spot (b) the time of day (c) the same stick (d) shadow length
3. 3.⚖️ 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
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
5. 5.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
6. 6.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) the same spot (d) shadow length
8. 8.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
10. 10.⚖️ 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
11. 11.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a battery cell (d) chalk to mark shadows
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 change it (b) we keep it the same (c) we measure it
15. 15.🔍 Which is the odd one out? (a) a wooden board (b) a steel plate (c) butter paper (d) a book
16. 16.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a balloon (c) a mirror (d) yeast
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
19. 19.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
20. 20.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a clock to check (d) a straight stick
24. 24.🔦 Which of these is opaque? (a) air (b) a brick (c) frosted glass (d) clean water
25. 25.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a clock to check (d) a straight stick
26. 26.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a balloon (d) chalk to mark shadows
28. 28.True or false: a clock to check is needed for the shadow clock. (a) True (b) False
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a straight stick (d) a clock to check
30. 30.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
31. 31.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a battery cell (d) a balloon
32. 32.True or false: clear glass is translucent. (a) True (b) False
33. 33.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) bigger (c) coloured (d) smaller
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
35. 35.True or false: oily paper is translucent. (a) True (b) False
36. 36.📘 Why does a shadow form? (a) the object is cold (b) light bends round it (c) an object blocks light (d) the ground is dark
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
38. 38.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
39. 39.⚖️ 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) False (b) True
40. 40.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent

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