Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 638 · 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.True or false: tissue paper is opaque. (a) False (b) True
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a straight stick (d) a balloon
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
5. 5.🔦 Which of these is transparent? (a) tissue paper (b) a brick (c) clean water (d) frosted glass
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
7. 7.🔦 Which of these is translucent? (a) a brick (b) clear glass (c) tissue paper (d) clean water
8. 8.🔍 Which is the odd one out? (a) a brick (b) your hand (c) clear plastic film (d) a wooden board
9. 9.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
12. 12.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
13. 13.🛟 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
14. 14.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) turmeric powder (c) a mirror (d) a clock to check
15. 15.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
16. 16.True or false: a mirror is needed for the shadow clock. (a) True (b) False
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a straight stick (d) a sunny open place
18. 18.🧺 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 balloon (d) a clock to check
19. 19.🔦 Which of these is translucent? (a) clear glass (b) air (c) oily paper (d) clear plastic film
20. 20.🔍 Which is the odd one out? (a) a steel plate (b) clean water (c) a wooden board (d) your hand
21. 21.⚖️ 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) the same stick (c) shadow length
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the stick kept upright (d) shadow length
23. 23.⚖️ 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) True (b) False
24. 24.True or false: a brick is opaque. (a) True (b) False
25. 25.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) chalk to mark shadows (d) a mirror
26. 26.🔦 Which of these is opaque? (a) a brick (b) oily paper (c) butter paper (d) clear plastic film
27. 27.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
28. 28.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) turmeric powder (c) a magnet (d) a sunny open place
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
30. 30.🔦 Which of these is opaque? (a) frosted glass (b) clean water (c) oily paper (d) a wooden board
31. 31.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
33. 33.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
34. 34.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a balloon
35. 35.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a mirror (c) chalk to mark shadows (d) a sunny open place
37. 37.🔍 Which is the odd one out? (a) frosted glass (b) air (c) clean water (d) clear glass
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
39. 39.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) the stick walks (d) Earth keeps spinning
40. 40.True or false: a steel plate is opaque. (a) True (b) False

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