Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 338 · 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: a balloon is not needed for the shadow clock. (a) False (b) True
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) butter paper (d) frosted glass
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.True or false: a book is transparent. (a) True (b) False
6. 6.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
7. 7.🔦 Which of these is transparent? (a) butter paper (b) frosted glass (c) clear glass (d) a book
8. 8.True or false: a steel plate is opaque. (a) True (b) False
9. 9.True or false: a wooden board is opaque. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) tissue paper (d) a book
11. 11.🌞 When is a stick’s shadow the shortest? (a) around noon (b) late evening (c) early morning (d) at night
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.🔍 Which is the odd one out? (a) tissue paper (b) frosted glass (c) butter paper (d) clear glass
14. 14.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a battery cell (c) yeast (d) a balloon
15. 15.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a magnet (d) a straight stick
18. 18.🔍 Which is the odd one out? (a) a brick (b) a wooden board (c) a book (d) frosted glass
19. 19.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
20. 20.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
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 keep it the same (b) we change it (c) we measure it
23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) west (d) east
24. 24.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) yeast
25. 25.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
26. 26.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a clock to check (d) a straight stick
27. 27.🔍 Which is the odd one out? (a) clear plastic film (b) oily paper (c) air (d) clean water
28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
29. 29.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) air (b) clean water (c) a wooden board (d) clear plastic film
32. 32.⚖️ 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) False (b) True
33. 33.⚖️ 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
34. 34.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
35. 35.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
36. 36.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) yeast (d) a sunny open place
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
39. 39.⚖️ 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) True (b) False
40. 40.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False

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