Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 485 · 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? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🔦 Which of these is opaque? (a) a steel plate (b) clean water (c) frosted glass (d) clear glass
3. 3.🔍 Which is the odd one out? (a) butter paper (b) a book (c) tissue paper (d) oily paper
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
5. 5.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the ground slides (d) the stick walks
6. 6.⚖️ 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
7. 7.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) up (d) north
8. 8.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a battery cell
9. 9.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) yeast (c) a sunny open place (d) chalk to mark shadows
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) chalk to mark shadows (d) a clock to check
13. 13.True or false: a magnet is needed for the shadow clock. (a) True (b) False
14. 14.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
15. 15.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a straight stick (d) turmeric powder
16. 16.🔦 Which of these is opaque? (a) oily paper (b) tissue paper (c) clear plastic film (d) a wooden board
17. 17.True or false: a balloon is needed for the shadow clock. (a) True (b) False
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) works better (d) does not work well
20. 20.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) yeast (d) a sunny open place
21. 21.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
22. 22.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
23. 23.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) late evening (d) early morning
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) yeast (d) a sunny open place
25. 25.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
26. 26.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.🔦 Which of these is transparent? (a) clear glass (b) a wooden board (c) oily paper (d) your hand
29. 29.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a balloon (d) a mirror
30. 30.🔦 Which of these is translucent? (a) oily paper (b) clean water (c) a wooden board (d) a book
31. 31.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) brighter (d) bigger
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a balloon (d) a clock to check
34. 34.🔦 Which of these is transparent? (a) tissue paper (b) a book (c) butter paper (d) clear plastic film
35. 35.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a steel plate (d) air
38. 38.True or false: a brick is translucent. (a) True (b) False
39. 39.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
40. 40.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent

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