Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 553 · 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.True or false: your hand is translucent. (a) True (b) False
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a magnet (d) a sunny open place
3. 3.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) chalk to mark shadows (d) a balloon
4. 4.⚖️ 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) False (b) True
5. 5.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
7. 7.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) a battery cell (d) turmeric powder
8. 8.⚖️ 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
9. 9.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
10. 10.⚖️ 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 same spot (c) the time of day (d) the same stick
11. 11.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
12. 12.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) a clock to check (d) chalk to mark shadows
14. 14.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a magnet
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
16. 16.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) tissue paper (d) a steel plate
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) yeast (c) chalk to mark shadows (d) a sunny open place
18. 18.📘 Why does a shadow form? (a) an object blocks light (b) the object is cold (c) light bends round it (d) the ground is dark
19. 19.🛟 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
20. 20.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
21. 21.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
22. 22.🔦 Which of these is transparent? (a) a book (b) a brick (c) clean water (d) frosted glass
23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) east (d) west
24. 24.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
25. 25.True or false: yeast is not needed for the shadow clock. (a) False (b) True
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the time of day (b) shadow length (c) the stick kept upright
27. 27.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
28. 28.🕰️ What is a sundial used for? (a) making rainbows (b) measuring rain (c) weighing things (d) telling the time
29. 29.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
30. 30.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
31. 31.🔦 Which of these is opaque? (a) clean water (b) a steel plate (c) clear plastic film (d) butter paper
32. 32.🧺 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 clock to check (d) a balloon
33. 33.🔦 Which of these is opaque? (a) oily paper (b) frosted glass (c) a book (d) clear glass
34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
36. 36.🔦 Which of these is opaque? (a) clean water (b) clear plastic film (c) oily paper (d) a wooden board
37. 37.🔦 Which of these is opaque? (a) tissue paper (b) clear glass (c) butter paper (d) your hand
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.True or false: yeast is needed for the shadow clock. (a) False (b) True
40. 40.True or false: your hand is opaque. (a) True (b) False

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