Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 575 · 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) clear plastic film (b) clear glass (c) clean water (d) a wooden board
2. 2.⚖️ 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 same spot (c) the same stick (d) the stick kept upright
3. 3.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) north (c) east (d) up
5. 5.⚖️ 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 measure it (c) we change it
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) False (b) True
7. 7.⚖️ 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 stick kept upright (c) the time of day (d) the same spot
8. 8.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) late evening (d) around noon
9. 9.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
10. 10.🔦 Which of these is opaque? (a) tissue paper (b) oily paper (c) a book (d) butter paper
11. 11.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a straight stick (c) chalk to mark shadows (d) a clock to check
14. 14.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
15. 15.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) frosted glass (b) tissue paper (c) a book (d) butter paper
17. 17.⚖️ 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) True (b) False
18. 18.🔦 Which of these is transparent? (a) your hand (b) oily paper (c) clean water (d) tissue paper
19. 19.True or false: a balloon is needed for the shadow clock. (a) True (b) False
20. 20.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
21. 21.🔦 Which of these is translucent? (a) frosted glass (b) clear plastic film (c) a book (d) clear glass
22. 22.True or false: tissue paper is translucent. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) clear glass (b) tissue paper (c) butter paper (d) oily paper
24. 24.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
25. 25.🔦 Which of these is opaque? (a) frosted glass (b) clean water (c) your hand (d) oily paper
26. 26.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
28. 28.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a balloon (d) a sunny open place
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) turmeric powder (c) chalk to mark shadows (d) a clock to check
30. 30.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) yeast (d) a magnet
32. 32.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a battery cell (d) turmeric powder
33. 33.🧺 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 mirror
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
35. 35.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
36. 36.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
37. 37.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
38. 38.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
39. 39.⚖️ 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
40. 40.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed

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