Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 826 · 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.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
3. 3.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a cap or hat (c) a raincoat (d) nothing on your head
4. 4.🌞 When is a stick’s shadow the shortest? (a) around noon (b) early morning (c) late evening (d) at night
5. 5.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a clock to check (d) a straight stick
6. 6.⚖️ 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
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
8. 8.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
9. 9.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
10. 10.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
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.🔍 Which is the odd one out? (a) air (b) clean water (c) butter paper (d) clear plastic film
13. 13.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
15. 15.🔦 Which of these is opaque? (a) butter paper (b) tissue paper (c) a wooden board (d) air
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
17. 17.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) chalk to mark shadows (d) yeast
19. 19.⚖️ 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
20. 20.⚖️ 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 time of day (c) the stick kept upright
21. 21.True or false: butter paper is transparent. (a) False (b) True
22. 22.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a clock to check (d) a straight stick
23. 23.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) a wooden board
24. 24.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
25. 25.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
26. 26.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the ground is dark (d) the object is cold
27. 27.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
28. 28.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
29. 29.🔍 Which is the odd one out? (a) a book (b) air (c) a brick (d) a steel plate
30. 30.True or false: yeast is not needed for the shadow clock. (a) False (b) True
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
33. 33.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) the time of day (d) shadow length
35. 35.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) Earth keeps spinning (d) the stick walks
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
38. 38.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
39. 39.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
40. 40.🔦 Which of these is translucent? (a) frosted glass (b) a wooden board (c) your hand (d) clear plastic film

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