Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 363 · 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 of these is needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a magnet (d) a battery cell
2. 2.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
3. 3.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
5. 5.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) look straight at the Sun (d) sit in the shade
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? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🔍 Which is the odd one out? (a) butter paper (b) tissue paper (c) a steel plate (d) oily paper
9. 9.🧺 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 magnet (d) a clock to check
10. 10.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a clock to check (d) a balloon
11. 11.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
12. 12.True or false: clean water is translucent. (a) True (b) False
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.True or false: oily paper is translucent. (a) True (b) False
15. 15.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
16. 16.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
17. 17.🧺 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 sunny open place (d) a balloon
18. 18.⚖️ 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) shadow length (c) the same stick (d) the time of day
19. 19.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
23. 23.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a battery cell (d) chalk to mark shadows
25. 25.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
26. 26.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
27. 27.🔦 Which of these is opaque? (a) frosted glass (b) oily paper (c) a steel plate (d) clear plastic film
28. 28.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not 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 clock to check
30. 30.🔦 Which of these is opaque? (a) a brick (b) tissue paper (c) frosted glass (d) clear glass
31. 31.⚖️ 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) shadow length (c) the same stick (d) the stick kept upright
32. 32.🔦 Which of these is translucent? (a) your hand (b) a steel plate (c) clear glass (d) butter paper
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a book (b) a brick (c) butter paper (d) a steel plate
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
37. 37.⚖️ 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
38. 38.True or false: a book is opaque. (a) True (b) False
39. 39.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day

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