Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 156 · 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.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
2. 2.🧺 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) turmeric powder
3. 3.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a balloon (c) a clock to check (d) a sunny open place
5. 5.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) a clock to check (d) a mirror
6. 6.⚖️ 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
7. 7.⚖️ 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) False (b) True
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) yeast (d) a straight stick
9. 9.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) long (d) missing
11. 11.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
12. 12.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) a brick (d) oily paper
13. 13.🔍 Which is the odd one out? (a) your hand (b) frosted glass (c) tissue paper (d) oily paper
14. 14.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) a wooden board
15. 15.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
16. 16.🔦 Is butter paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
17. 17.⚖️ 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) shadow length (c) the stick kept upright (d) the same spot
18. 18.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
19. 19.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the stick kept upright (b) shadow length (c) the time of day (d) the same stick
22. 22.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick grows (c) Earth keeps spinning (d) the stick walks
23. 23.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
24. 24.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) tissue paper (d) clean water
27. 27.🔍 Which is the odd one out? (a) a book (b) a wooden board (c) a brick (d) air
28. 28.🔦 Which of these is transparent? (a) oily paper (b) a book (c) butter paper (d) air
29. 29.🔦 Which of these is transparent? (a) butter paper (b) clear glass (c) a book (d) tissue paper
30. 30.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
31. 31.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
32. 32.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
33. 33.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
34. 34.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) oily paper (d) air
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a straight stick
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
38. 38.🔍 Which is the odd one out? (a) frosted glass (b) a wooden board (c) a steel plate (d) a brick
39. 39.⚖️ 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
40. 40.True or false: a mirror is needed for the shadow clock. (a) True (b) False

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