Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 700 · 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 transparent? (a) tissue paper (b) clear glass (c) a wooden board (d) a steel plate
2. 2.⚖️ 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
3. 3.🔦 Which of these is translucent? (a) oily paper (b) clear glass (c) your hand (d) air
4. 4.🔍 Which is the odd one out? (a) butter paper (b) clean water (c) frosted glass (d) tissue paper
5. 5.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a battery cell (c) a mirror (d) chalk to mark shadows
6. 6.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) air (b) clear glass (c) frosted glass (d) clean water
8. 8.True or false: oily paper is translucent. (a) False (b) True
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) yeast (d) a sunny open place
10. 10.🔍 Which is the odd one out? (a) a wooden board (b) a brick (c) a steel plate (d) clear glass
11. 11.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a sunny open place (d) a balloon
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 keep it the same (b) we measure it (c) we change it
13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) long (c) missing (d) round
14. 14.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) shows two times (d) works better
15. 15.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) weighing things (d) making rainbows
16. 16.⚖️ 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 measure it (c) we keep it the same
17. 17.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
18. 18.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the ground slides (d) the stick walks
19. 19.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) clear glass (d) oily paper
20. 20.⚖️ 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
21. 21.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
22. 22.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
23. 23.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
24. 24.🧺 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 straight stick
25. 25.🧺 Which of these is not needed for the shadow clock? (a) a magnet (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) shadow length (d) the stick kept upright
27. 27.⚖️ 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 stick kept upright (d) the time of day
28. 28.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) mark with chalk (d) wear a cap
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
30. 30.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a straight stick (d) yeast
31. 31.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a battery cell (d) a straight stick
32. 32.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
33. 33.True or false: air is translucent. (a) True (b) False
34. 34.True or false: clean water is transparent. (a) False (b) True
35. 35.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
36. 36.🔦 Which of these is opaque? (a) a steel plate (b) clear plastic film (c) air (d) clear glass
37. 37.🔦 Which of these is translucent? (a) clean water (b) clear glass (c) your hand (d) tissue paper
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) a book (b) butter paper (c) oily paper (d) frosted glass
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) yeast (c) a sunny open place (d) a clock to check

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