Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 392 · 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.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a woollen sweater (c) a raincoat (d) nothing on your head
2. 2.⚖️ 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
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.True or false: a steel plate is translucent. (a) False (b) True
5. 5.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
6. 6.True or false: a steel plate is transparent. (a) False (b) True
7. 7.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
8. 8.⚖️ 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 same stick (d) the same spot
9. 9.True or false: clear plastic film is translucent. (a) True (b) False
10. 10.⚖️ 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) shadow length (c) the time of day (d) the same spot
11. 11.⚖️ 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
12. 12.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a sunny open place (d) a clock to check
14. 14.⚖️ 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
15. 15.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
16. 16.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a clock to check
17. 17.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) a magnet
18. 18.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
19. 19.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a battery cell (d) chalk to mark shadows
20. 20.True or false: air is opaque. (a) True (b) False
21. 21.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
22. 22.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
23. 23.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) chalk to mark shadows (c) a battery cell (d) a balloon
24. 24.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a straight stick (d) chalk to mark shadows
25. 25.True or false: tissue paper is translucent. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) a brick (d) clear glass
27. 27.True or false: a brick is translucent. (a) False (b) True
28. 28.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
29. 29.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
30. 30.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
31. 31.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) False (b) True
32. 32.🔦 Which of these is transparent? (a) oily paper (b) your hand (c) tissue paper (d) clear plastic film
33. 33.⚖️ 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 stick kept upright
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a battery cell
35. 35.True or false: clean water is transparent. (a) True (b) False
36. 36.⚖️ 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 stick
37. 37.True or false: clear glass is opaque. (a) False (b) True
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
40. 40.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False

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