Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 882 · 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.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) weighing things (d) telling the time
2. 2.⚖️ 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
3. 3.True or false: frosted glass is transparent. (a) True (b) False
4. 4.⚖️ 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 spot (b) the stick kept upright (c) the time of day (d) the same stick
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) a sunny open place (d) a straight stick
6. 6.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) a raincoat (c) a woollen sweater (d) nothing on your head
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a battery cell (d) a mirror
10. 10.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
11. 11.⚖️ 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
12. 12.🧺 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) turmeric powder
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a balloon (d) a straight stick
14. 14.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
15. 15.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
16. 16.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) brighter (d) coloured
17. 17.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
19. 19.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) yeast (d) a straight stick
20. 20.⚖️ 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
21. 21.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
22. 22.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
23. 23.⚖️ 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
24. 24.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
25. 25.🔦 Which of these is transparent? (a) oily paper (b) clear glass (c) a steel plate (d) tissue paper
26. 26.True or false: a wooden board is opaque. (a) False (b) True
27. 27.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a magnet (d) a straight stick
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) a straight stick (d) a clock to check
29. 29.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) turmeric powder (d) a balloon
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) the time of day (c) shadow length
31. 31.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) shows two times (d) runs faster
33. 33.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
34. 34.True or false: a book is opaque. (a) True (b) False
35. 35.🔦 Which of these is transparent? (a) clean water (b) butter paper (c) tissue paper (d) a brick
36. 36.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
37. 37.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
38. 38.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we change it (c) we measure it

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