Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 982 · 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) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) butter paper (b) your hand (c) frosted glass (d) oily paper
4. 4.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) a mirror (d) a clock to check
5. 5.True or false: clear plastic film is translucent. (a) False (b) True
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
7. 7.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.⚖️ 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
10. 10.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
11. 11.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) yeast
12. 12.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
13. 13.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
14. 14.⚖️ 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
15. 15.📘 Why does a shadow form? (a) light bends round it (b) an object blocks light (c) the object is cold (d) the ground is dark
16. 16.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) a balloon
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a sunny open place (c) a straight stick (d) a clock to check
20. 20.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a sunny open place (d) chalk to mark shadows
23. 23.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
24. 24.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) butter paper (d) a steel plate
25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) bigger (d) coloured
26. 26.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
29. 29.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) oily paper (b) your hand (c) a steel plate (d) a book
31. 31.🔦 Which of these is translucent? (a) frosted glass (b) clean water (c) a wooden board (d) a book
32. 32.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a straight stick (d) a sunny open place
34. 34.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
35. 35.True or false: yeast is needed for the shadow clock. (a) False (b) True
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
38. 38.🔍 Which is the odd one out? (a) clear glass (b) air (c) clear plastic film (d) a book
39. 39.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a magnet (c) a battery cell (d) a balloon
40. 40.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) yeast (c) a magnet (d) a battery cell

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