Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 778 · 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.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
2. 2.🧺 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) yeast (d) a straight stick
3. 3.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a balloon (c) chalk to mark shadows (d) a straight stick
4. 4.🔦 Which of these is translucent? (a) clean water (b) air (c) a steel plate (d) oily paper
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
6. 6.🌞 When is a stick’s shadow the shortest? (a) at night (b) around noon (c) late evening (d) early morning
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
8. 8.⚖️ 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) the same spot (c) shadow length
9. 9.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
10. 10.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
12. 12.True or false: clear glass is translucent. (a) False (b) True
13. 13.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
14. 14.🔦 Which of these is transparent? (a) oily paper (b) butter paper (c) clear plastic film (d) a book
15. 15.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick walks (c) the ground slides (d) the stick grows
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
18. 18.🔍 Which is the odd one out? (a) a book (b) your hand (c) clear glass (d) a wooden board
19. 19.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a magnet (c) a straight stick (d) a balloon
20. 20.⚖️ 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) shadow length (c) the time of day
21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) a wooden board (d) clear glass
24. 24.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) frosted glass
25. 25.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) tissue paper (d) air
26. 26.⚖️ 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) the stick kept upright
27. 27.🔍 Which is the odd one out? (a) a steel plate (b) tissue paper (c) oily paper (d) butter paper
28. 28.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
29. 29.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
30. 30.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
31. 31.True or false: butter paper is translucent. (a) True (b) False
32. 32.True or false: a book is opaque. (a) False (b) True
33. 33.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
34. 34.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
35. 35.🛟 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
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
37. 37.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
38. 38.True or false: your hand is opaque. (a) False (b) True
39. 39.True or false: clean water is transparent. (a) True (b) False
40. 40.⚖️ 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 stick kept upright (d) shadow length

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