Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 574 · 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 is the odd one out? (a) air (b) a wooden board (c) your hand (d) a steel plate
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.⚖️ 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) shadow length
4. 4.🔦 Which of these is opaque? (a) tissue paper (b) clear glass (c) frosted glass (d) a brick
5. 5.🔦 Which of these is transparent? (a) your hand (b) air (c) a wooden board (d) a steel plate
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) works better (d) runs faster
8. 8.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) a steel plate (d) butter paper
9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a straight stick (d) a battery cell
10. 10.True or false: a wooden board is transparent. (a) True (b) False
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
13. 13.⚖️ 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 stick (c) the time of day (d) the stick kept upright
14. 14.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
15. 15.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a battery cell (d) a straight stick
16. 16.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a clock to check (d) a battery cell
17. 17.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) frosted glass (d) tissue paper
18. 18.⚖️ 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
19. 19.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) bigger (c) brighter (d) smaller
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a magnet (c) a clock to check (d) chalk to mark shadows
21. 21.🔦 Which of these is transparent? (a) oily paper (b) a wooden board (c) clear plastic film (d) butter paper
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we keep it the same (c) we change it
23. 23.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
24. 24.True or false: oily paper is translucent. (a) False (b) True
25. 25.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) turmeric powder (c) yeast (d) a sunny open place
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
27. 27.📘 Why does a shadow form? (a) an object blocks light (b) the ground is dark (c) the object is cold (d) light bends round it
28. 28.🧺 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 straight stick (d) a battery cell
29. 29.⚖️ 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
30. 30.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
31. 31.🛟 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
32. 32.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
33. 33.True or false: clear plastic film is transparent. (a) True (b) False
34. 34.⚖️ 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 spot
35. 35.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
36. 36.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
37. 37.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
38. 38.True or false: tissue paper is translucent. (a) True (b) False
39. 39.True or false: a book is translucent. (a) False (b) True
40. 40.True or false: a wooden board is opaque. (a) False (b) True

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