Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 820 · 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.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
3. 3.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
4. 4.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) yeast (d) a magnet
5. 5.True or false: clear glass is translucent. (a) True (b) False
6. 6.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
7. 7.🔦 Is air opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
9. 9.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
10. 10.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
12. 12.🔦 Which of these is translucent? (a) your hand (b) a brick (c) frosted glass (d) clean water
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the same stick (d) the stick kept upright
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
15. 15.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a mirror (c) a clock to check (d) a straight stick
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a magnet (d) a straight stick
17. 17.🔍 Which is the odd one out? (a) clear glass (b) butter paper (c) clear plastic film (d) air
18. 18.⚖️ 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
19. 19.🔍 Which is the odd one out? (a) a steel plate (b) a wooden board (c) a book (d) air
20. 20.True or false: butter paper is translucent. (a) True (b) False
21. 21.True or false: tissue paper is translucent. (a) False (b) True
22. 22.True or false: a book is translucent. (a) True (b) False
23. 23.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a straight stick (c) a magnet (d) a balloon
24. 24.⚖️ 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
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) turmeric powder
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
29. 29.⚖️ 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) the stick kept upright (c) the same spot (d) the time of day
30. 30.🔦 Which of these is transparent? (a) a steel plate (b) a book (c) clean water (d) oily paper
31. 31.🔦 Which of these is transparent? (a) a book (b) air (c) butter paper (d) your hand
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) tissue paper (d) a brick
34. 34.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
35. 35.🔦 Which of these is opaque? (a) oily paper (b) a steel plate (c) clear glass (d) tissue paper
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 measure it (b) we change it (c) we keep it the same
37. 37.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False

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