Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 270 · 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.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
3. 3.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
4. 4.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) butter paper (d) your hand
5. 5.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a balloon
7. 7.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) turmeric powder (d) a mirror
8. 8.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
10. 10.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
11. 11.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
12. 12.⚖️ 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
13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) round (d) missing
14. 14.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
15. 15.⚖️ 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 time of day (d) the same spot
16. 16.🧺 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) turmeric powder
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a mirror
18. 18.🔍 Which is the odd one out? (a) clean water (b) frosted glass (c) air (d) clear glass
19. 19.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
20. 20.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
21. 21.🧺 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) a sunny open place
22. 22.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a brick (d) clean water
23. 23.🔦 Which of these is opaque? (a) butter paper (b) air (c) frosted glass (d) a steel plate
24. 24.🔦 Which of these is opaque? (a) frosted glass (b) a wooden board (c) clean water (d) clear plastic film
25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a magnet
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
29. 29.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
30. 30.📘 Why does a shadow form? (a) the object is cold (b) the ground is dark (c) an object blocks light (d) light bends round it
31. 31.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) west (c) east (d) north
32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
33. 33.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
34. 34.True or false: yeast is needed for the shadow clock. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) butter paper (d) oily paper
36. 36.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) butter paper (d) tissue paper
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) chalk to mark shadows (d) a straight stick
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
39. 39.🔍 Which is the odd one out? (a) air (b) tissue paper (c) frosted glass (d) butter paper
40. 40.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed

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