Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 315 · 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.🔍 Which is the odd one out? (a) oily paper (b) a wooden board (c) frosted glass (d) butter paper
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) yeast (d) a straight stick
4. 4.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a battery cell (d) a mirror
5. 5.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the ground is dark (d) the object is cold
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the same stick (d) the stick kept upright
8. 8.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) a steel plate (d) a brick
9. 9.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
10. 10.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) the ground slides (d) Earth keeps spinning
11. 11.⚖️ 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
12. 12.⚖️ 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 measure it (c) we change it
13. 13.⚖️ 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
14. 14.⚖️ 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) shadow length (c) the same stick
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) clean water (d) tissue paper
17. 17.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) yeast
19. 19.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
20. 20.True or false: clear glass is translucent. (a) True (b) False
21. 21.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) a balloon
23. 23.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
24. 24.🔦 Which of these is transparent? (a) clear plastic film (b) butter paper (c) oily paper (d) a book
25. 25.True or false: your hand is translucent. (a) True (b) False
26. 26.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a battery cell (d) chalk to mark shadows
29. 29.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a clock to check (d) a sunny open place
30. 30.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a cap or hat (d) a woollen sweater
31. 31.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
32. 32.True or false: yeast is needed for the shadow clock. (a) True (b) False
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a sunny open place
34. 34.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
35. 35.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
36. 36.🔍 Which is the odd one out? (a) air (b) a book (c) a brick (d) a wooden board
37. 37.⚖️ 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) shadow length (c) the same spot
38. 38.True or false: a magnet is needed for the shadow clock. (a) True (b) False
39. 39.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
40. 40.True or false: a balloon is needed for the shadow clock. (a) True (b) False

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