Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 230 · 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) a brick (b) a wooden board (c) frosted glass (d) a book
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) shadow length (c) the same stick (d) the same spot
3. 3.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) air (d) a wooden board
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
7. 7.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
8. 8.True or false: air is transparent. (a) True (b) False
9. 9.True or false: a book is translucent. (a) True (b) False
10. 10.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the same stick (c) the time of day
12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
13. 13.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) chalk to mark shadows (d) a balloon
14. 14.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
15. 15.⚖️ 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 keep it the same (c) we measure it
16. 16.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a clock to check (c) a mirror (d) a balloon
17. 17.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
18. 18.⚖️ 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) False (b) True
19. 19.🔍 Which is the odd one out? (a) air (b) a brick (c) your hand (d) a wooden board
20. 20.⚖️ 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 change it (c) we keep it the same
21. 21.🧺 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) a straight stick (d) a balloon
22. 22.🔦 Which of these is transparent? (a) a wooden board (b) frosted glass (c) clear plastic film (d) tissue paper
23. 23.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) butter paper (d) tissue paper
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 same spot (b) the same stick (c) the time of day (d) shadow length
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
26. 26.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a sunny open place (d) a straight stick
28. 28.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
29. 29.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) a straight stick (d) a magnet
30. 30.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) your hand (d) air
31. 31.⚖️ 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
32. 32.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
33. 33.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) turmeric powder (c) a straight stick (d) chalk to mark shadows
35. 35.⚖️ 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) True (b) False
36. 36.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
39. 39.🔍 Which is the odd one out? (a) tissue paper (b) oily paper (c) butter paper (d) clear glass
40. 40.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a sunny open place (d) a mirror

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