Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 905 · 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.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
2. 2.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
3. 3.⚖️ 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 time of day (c) the same spot (d) the same stick
4. 4.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
5. 5.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
6. 6.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
8. 8.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) a brick (d) a book
10. 10.True or false: clear glass is translucent. (a) False (b) True
11. 11.📘 Why does a shadow form? (a) light bends round it (b) the object is cold (c) an object blocks light (d) the ground is dark
12. 12.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) smaller (c) brighter (d) coloured
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) chalk to mark shadows (d) turmeric powder
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same stick (b) the time of day (c) shadow length (d) the stick kept upright
15. 15.🌞 When is a stick’s shadow the shortest? (a) around noon (b) at night (c) early morning (d) late evening
16. 16.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
17. 17.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a mirror (c) a sunny open place (d) a straight stick
18. 18.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
19. 19.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
20. 20.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
21. 21.🔍 Which is the odd one out? (a) a steel plate (b) clear glass (c) a brick (d) your hand
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.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
24. 24.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a magnet (d) a mirror
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place
26. 26.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) measuring rain (d) making rainbows
27. 27.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
28. 28.True or false: frosted glass is translucent. (a) True (b) False
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
30. 30.🔦 Which of these is transparent? (a) oily paper (b) a brick (c) a book (d) air
31. 31.🔦 Which of these is opaque? (a) oily paper (b) tissue paper (c) a brick (d) clear glass
32. 32.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a sunny open place (c) turmeric powder (d) a battery cell
33. 33.🔦 Which of these is translucent? (a) butter paper (b) a book (c) a brick (d) air
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) chalk to mark shadows (d) a battery cell
35. 35.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) clear plastic film (d) butter paper
36. 36.🛟 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
37. 37.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
38. 38.🔦 Which of these is transparent? (a) clear plastic film (b) frosted glass (c) a brick (d) a steel plate
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) False (b) True
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) yeast (d) a sunny open place

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