Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 762 · 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.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a battery cell (d) a clock to check
3. 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) shows two times (d) runs faster
4. 4.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
5. 5.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.True or false: clear plastic film is opaque. (a) False (b) True
8. 8.🔦 Which of these is transparent? (a) tissue paper (b) oily paper (c) clear plastic film (d) a steel plate
9. 9.🔦 Which of these is opaque? (a) butter paper (b) your hand (c) clear glass (d) tissue paper
10. 10.🛟 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
11. 11.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) smaller (d) coloured
12. 12.⚖️ 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 change it (c) we measure it
13. 13.🔍 Which is the odd one out? (a) clear glass (b) oily paper (c) butter paper (d) tissue paper
14. 14.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) measuring rain (d) telling the time
15. 15.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) short (d) round
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
17. 17.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
18. 18.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
19. 19.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
20. 20.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a straight stick (d) a sunny open place
21. 21.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) the stick kept upright (d) shadow length
23. 23.⚖️ 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
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) the same spot (c) the time of day (d) shadow length
25. 25.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a mirror (d) a straight stick
26. 26.🌍 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
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) a straight stick (d) a sunny open place
28. 28.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a sunny open place
30. 30.True or false: a magnet is needed for the shadow clock. (a) False (b) True
31. 31.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a magnet (d) a clock to check
33. 33.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
34. 34.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) clean water (d) butter paper
35. 35.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) oily paper (d) a brick
36. 36.🔍 Which is the odd one out? (a) oily paper (b) butter paper (c) clean water (d) frosted glass
37. 37.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
38. 38.True or false: a balloon is needed for the shadow clock. (a) True (b) False
39. 39.True or false: yeast is needed for the shadow clock. (a) False (b) True
40. 40.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed

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