Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 859 · 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.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
2. 2.🔍 Which is the odd one out? (a) a brick (b) clear glass (c) your hand (d) a wooden board
3. 3.True or false: a balloon is needed for the shadow clock. (a) True (b) False
4. 4.⚖️ 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
5. 5.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
6. 6.⚖️ 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) True (b) False
7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
9. 9.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
10. 10.True or false: your hand is opaque. (a) True (b) False
11. 11.True or false: clear glass is transparent. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) oily paper (d) a brick
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 balloon (d) chalk to mark shadows
14. 14.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) butter paper (d) frosted glass
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
16. 16.True or false: clear glass is opaque. (a) True (b) False
17. 17.⚖️ 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 stick kept upright (c) the time of day
18. 18.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
19. 19.🧺 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 magnet (d) chalk to mark shadows
20. 20.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
21. 21.⚖️ 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 stick (b) shadow length (c) the same spot (d) the time of day
22. 22.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) an object blocks light (d) the object is cold
23. 23.⚖️ 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 stick kept upright (c) the time of day (d) shadow length
24. 24.🔦 Which of these is opaque? (a) clear glass (b) clear plastic film (c) a steel plate (d) butter paper
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🔍 Which is the odd one out? (a) your hand (b) clean water (c) a book (d) a wooden board
28. 28.🔦 Which of these is opaque? (a) clear glass (b) tissue paper (c) a wooden board (d) oily paper
29. 29.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a straight stick (d) turmeric powder
30. 30.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) turmeric powder (d) chalk to mark shadows
31. 31.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
32. 32.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
33. 33.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
37. 37.🔦 Which of these is translucent? (a) clear plastic film (b) butter paper (c) a book (d) clear glass
38. 38.🔦 Is air opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
39. 39.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a magnet (d) chalk to mark shadows
40. 40.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed

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