Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 368 · 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.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) wear a cap (d) sit in the shade
2. 2.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
3. 3.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) clear glass (d) air
5. 5.🧺 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) turmeric powder (d) a sunny open place
6. 6.⚖️ 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 measure it (c) we change it
7. 7.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a book (b) air (c) clear glass (d) clean water
10. 10.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
11. 11.True or false: oily paper is transparent. (a) True (b) False
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a battery cell (c) chalk to mark shadows (d) a clock to check
13. 13.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
14. 14.True or false: clear glass is opaque. (a) False (b) True
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) runs faster (d) shows two times
16. 16.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
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? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) oily paper (d) your hand
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) clean water (b) frosted glass (c) clear plastic film (d) clear glass
23. 23.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
24. 24.⚖️ 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 spot (c) the same stick (d) shadow length
25. 25.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a magnet
27. 27.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
28. 28.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a sunny open place (d) a clock to check
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a battery cell (d) chalk to mark shadows
33. 33.⚖️ 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
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the stick kept upright (c) the same spot (d) shadow length
35. 35.True or false: a magnet is needed for the shadow clock. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) clear plastic film (d) tissue paper
37. 37.🔦 Which of these is opaque? (a) clean water (b) clear plastic film (c) a book (d) frosted glass
38. 38.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a clock to check (c) turmeric powder (d) yeast
39. 39.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
40. 40.True or false: a brick is opaque. (a) False (b) True

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