Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 673 · 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 of these is needed for the shadow clock? (a) a battery cell (b) yeast (c) a magnet (d) a clock to check
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a sunny open place
3. 3.🧺 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) a sunny open place (d) a mirror
4. 4.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
5. 5.🔍 Which is the odd one out? (a) air (b) butter paper (c) clear plastic film (d) clean water
6. 6.⚖️ 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
7. 7.🧺 Which of these is needed for the shadow clock? (a) yeast (b) turmeric powder (c) a mirror (d) a straight stick
8. 8.🔦 Which of these is opaque? (a) butter paper (b) oily paper (c) a wooden board (d) tissue paper
9. 9.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
10. 10.⚖️ 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
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the same spot (c) the stick kept upright (d) the time of day
12. 12.True or false: air is transparent. (a) False (b) True
13. 13.🔦 Is clear plastic film opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
14. 14.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
15. 15.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
16. 16.⚖️ 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
17. 17.⚖️ 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
18. 18.🔦 Which of these is opaque? (a) tissue paper (b) your hand (c) air (d) clear plastic film
19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
20. 20.⚖️ 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
21. 21.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a balloon (c) a battery cell (d) turmeric powder
22. 22.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
23. 23.🔦 Which of these is transparent? (a) a wooden board (b) a book (c) clean water (d) frosted glass
24. 24.True or false: air is opaque. (a) False (b) True
25. 25.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a mirror (c) a clock to check (d) a sunny open place
26. 26.⚖️ 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
27. 27.True or false: a book is translucent. (a) True (b) False
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) True (b) False
29. 29.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
30. 30.🛟 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
31. 31.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) clear plastic film (d) frosted glass
32. 32.⚖️ 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 time of day (c) the same spot (d) the stick kept upright
33. 33.⚖️ 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
34. 34.🔦 Which of these is transparent? (a) clear glass (b) butter paper (c) a wooden board (d) a steel plate
35. 35.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) a wooden board
36. 36.🔦 Which of these is translucent? (a) air (b) a steel plate (c) a wooden board (d) butter paper
37. 37.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
38. 38.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
39. 39.⚖️ 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
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True

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