Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 282 · 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.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
3. 3.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) a mirror (d) yeast
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) round (c) missing (d) long
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) a book (b) butter paper (c) frosted glass (d) oily paper
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a straight stick (d) yeast
9. 9.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
10. 10.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
11. 11.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
12. 12.🔦 Which of these is transparent? (a) a book (b) clean water (c) butter paper (d) a wooden board
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) chalk to mark shadows (c) a clock to check (d) a sunny open place
14. 14.True or false: butter paper is translucent. (a) False (b) True
15. 15.🔦 Which of these is translucent? (a) air (b) your hand (c) frosted glass (d) a brick
16. 16.⚖️ 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) False (b) True
17. 17.⚖️ 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
18. 18.🛟 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
19. 19.⚖️ 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
20. 20.True or false: a balloon is needed for the shadow clock. (a) True (b) False
21. 21.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) yeast
22. 22.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) runs faster (d) works better
23. 23.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick grows (d) the stick walks
24. 24.🧺 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) chalk to mark shadows (d) turmeric powder
25. 25.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
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) shadow length (b) the same spot (c) the same stick (d) the time of day
27. 27.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
28. 28.⚖️ 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
29. 29.🔍 Which is the odd one out? (a) a brick (b) clear plastic film (c) clear glass (d) clean water
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.True or false: a wooden board is translucent. (a) True (b) False
32. 32.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a mirror (c) a straight stick (d) a magnet
33. 33.⚖️ 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 measure it (c) we change it
34. 34.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
35. 35.🔦 Which of these is transparent? (a) oily paper (b) tissue paper (c) clear plastic film (d) frosted glass
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a clock to check (d) a battery cell
37. 37.True or false: frosted glass is transparent. (a) False (b) True
38. 38.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
39. 39.🔦 Which of these is translucent? (a) a book (b) butter paper (c) a steel plate (d) a wooden board
40. 40.⚖️ 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 change it (c) we measure it

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