Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 924 · 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 “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) a brick (d) oily paper
3. 3.🔍 Which is the odd one out? (a) clean water (b) oily paper (c) frosted glass (d) butter paper
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 change it (b) we keep it the same (c) we measure it
5. 5.🔦 Which of these is opaque? (a) a steel plate (b) oily paper (c) frosted glass (d) clear plastic film
6. 6.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
7. 7.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) yeast (d) a mirror
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a balloon (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a clock to check
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
11. 11.⚖️ 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
12. 12.🔦 Is a book opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the stick kept upright (d) the same spot
15. 15.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) yeast (d) a straight stick
16. 16.🛟 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
17. 17.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) bigger (d) smaller
18. 18.⚖️ 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
19. 19.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
20. 20.🔦 Which of these is translucent? (a) butter paper (b) a steel plate (c) clear glass (d) clear plastic film
21. 21.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
22. 22.⚖️ 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 same spot
23. 23.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
25. 25.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
26. 26.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a sunny open place (d) a magnet
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
29. 29.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
30. 30.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
31. 31.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
32. 32.True or false: yeast is needed for the shadow clock. (a) False (b) True
33. 33.🌍 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
34. 34.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) clean water (d) a book
35. 35.True or false: clear plastic film is transparent. (a) True (b) False
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) your hand (b) a brick (c) a steel plate (d) oily paper
38. 38.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) clear plastic film
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same

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