Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 140 · 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.⚖️ 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
2. 2.True or false: oily paper is opaque. (a) True (b) False
3. 3.📘 Why does a shadow form? (a) an object blocks light (b) light bends round it (c) the object is cold (d) the ground is dark
4. 4.🔦 Which of these is translucent? (a) air (b) clear plastic film (c) oily paper (d) a wooden board
5. 5.🔍 Which is the odd one out? (a) clear glass (b) clear plastic film (c) a wooden board (d) clean water
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) False (b) True
7. 7.🔦 Which of these is opaque? (a) oily paper (b) clear plastic film (c) a wooden board (d) frosted glass
8. 8.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a book (d) frosted glass
9. 9.True or false: frosted glass is translucent. (a) True (b) False
10. 10.🕰️ What is a sundial used for? (a) measuring rain (b) weighing things (c) telling the time (d) making rainbows
11. 11.🔦 Which of these is translucent? (a) your hand (b) butter paper (c) air (d) a wooden board
12. 12.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a straight stick (d) a balloon
13. 13.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) a sunny open place (d) a straight stick
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a straight stick (d) chalk to mark shadows
15. 15.🔍 Which is the odd one out? (a) a wooden board (b) oily paper (c) your hand (d) a brick
16. 16.True or false: a magnet is needed for the shadow clock. (a) True (b) False
17. 17.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
18. 18.🧺 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 mirror (d) a clock to check
19. 19.🔦 Which of these is transparent? (a) butter paper (b) tissue paper (c) a steel plate (d) clean water
20. 20.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) a wooden board (d) clean water
21. 21.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
22. 22.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
24. 24.🔦 Which of these is opaque? (a) clear glass (b) tissue paper (c) your hand (d) air
25. 25.⚖️ 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
26. 26.🔦 Is clean water opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
29. 29.True or false: a battery cell is needed for the shadow clock. (a) False (b) True
30. 30.⚖️ 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) shadow length (c) the same spot (d) the stick kept upright
31. 31.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a sunny open place (d) a magnet
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) the time of day (c) shadow length
34. 34.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
35. 35.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.🛟 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
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the stick kept upright
38. 38.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
39. 39.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) the ground slides (d) Earth keeps spinning
40. 40.⚖️ 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 stick (d) the stick kept upright

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