Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 278 · 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.⚖️ 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) True (b) False
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) yeast
3. 3.⚖️ 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
4. 4.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
6. 6.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
7. 7.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
8. 8.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a magnet
9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) short (d) missing
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a balloon (d) a clock to check
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) chalk to mark shadows (c) a sunny open place (d) a clock to check
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) yeast (d) a sunny open place
15. 15.🔦 Which of these is opaque? (a) clear glass (b) clean water (c) a steel plate (d) air
16. 16.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same spot (c) the same stick (d) the time of day
17. 17.⚖️ 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) False (b) True
18. 18.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
19. 19.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
20. 20.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) coloured (c) smaller (d) brighter
22. 22.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clean water (d) frosted glass
23. 23.🔍 Which is the odd one out? (a) a book (b) clear glass (c) a brick (d) a wooden board
24. 24.🔍 Which is the odd one out? (a) oily paper (b) tissue paper (c) clean water (d) frosted glass
25. 25.True or false: clear plastic film is opaque. (a) True (b) False
26. 26.🔦 Which of these is transparent? (a) butter paper (b) your hand (c) a book (d) air
27. 27.🔦 Which of these is transparent? (a) clear plastic film (b) frosted glass (c) oily paper (d) a wooden board
28. 28.⚖️ 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
29. 29.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
30. 30.True or false: oily paper is translucent. (a) False (b) True
31. 31.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
32. 32.⚖️ 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
33. 33.True or false: tissue paper is translucent. (a) False (b) True
34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
36. 36.True or false: yeast is not needed for the shadow clock. (a) True (b) False
37. 37.⚖️ 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 time of day (c) the same spot (d) the same stick
38. 38.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
39. 39.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
40. 40.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed

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