Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 808 · 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.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
2. 2.⚖️ 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
3. 3.🕰️ What is a sundial used for? (a) telling the time (b) weighing things (c) making rainbows (d) measuring rain
4. 4.⚖️ 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 same spot (c) the time of day
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) yeast (d) a clock to check
6. 6.🔦 Which of these is transparent? (a) clear glass (b) frosted glass (c) a brick (d) oily paper
7. 7.True or false: a magnet is needed for the shadow clock. (a) True (b) False
8. 8.⚖️ 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
9. 9.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) nothing on your head (d) a woollen sweater
11. 11.⚖️ 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) shadow length (d) the time of day
12. 12.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
13. 13.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a steel plate (d) clean water
14. 14.⚖️ 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
15. 15.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
16. 16.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) chalk to mark shadows (d) a straight stick
17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) does not work well (d) runs faster
18. 18.🧺 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 battery cell (d) a straight stick
19. 19.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
20. 20.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
21. 21.⚖️ 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) False (b) True
22. 22.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a battery cell (d) a clock to check
24. 24.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) Earth keeps spinning (d) the stick grows
25. 25.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) turmeric powder
28. 28.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a sunny open place (c) a clock to check (d) a straight stick
30. 30.⚖️ 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
31. 31.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
32. 32.🔦 Which of these is opaque? (a) clear plastic film (b) oily paper (c) a book (d) clear glass
33. 33.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) a balloon (d) yeast
34. 34.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
35. 35.🔦 Which of these is transparent? (a) a steel plate (b) frosted glass (c) oily paper (d) clear plastic film
36. 36.⚖️ 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
37. 37.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a battery cell (d) turmeric powder
38. 38.True or false: air is translucent. (a) True (b) False
39. 39.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
40. 40.🔦 Which of these is translucent? (a) a wooden board (b) clear glass (c) frosted glass (d) a steel plate

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