Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 927 · 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 opaque? (a) clean water (b) a steel plate (c) clear plastic film (d) butter paper
2. 2.🧺 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 straight stick (d) a battery cell
3. 3.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
4. 4.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
5. 5.⚖️ 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
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
7. 7.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
8. 8.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
9. 9.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) short (c) round (d) missing
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) a sunny open place (d) turmeric powder
11. 11.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a brick (b) tissue paper (c) a wooden board (d) a book
13. 13.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
14. 14.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
15. 15.⚖️ 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 stick kept upright (c) the same spot (d) the time of day
16. 16.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
17. 17.True or false: frosted glass is opaque. (a) False (b) True
18. 18.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a balloon (c) a magnet (d) a clock to check
19. 19.⚖️ 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) shadow length (c) the stick kept upright
20. 20.🔍 Which is the odd one out? (a) air (b) your hand (c) a book (d) a wooden board
21. 21.True or false: clear glass is translucent. (a) False (b) True
22. 22.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) a sunny open place (d) a straight stick
23. 23.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) turmeric powder
24. 24.🔍 Which is the odd one out? (a) oily paper (b) frosted glass (c) a steel plate (d) butter paper
25. 25.🧺 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 clock to check
26. 26.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) look straight at the Sun (d) sit in the shade
27. 27.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
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) False (b) True
29. 29.⚖️ 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) True (b) False
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) True (b) False
31. 31.🔦 Which of these is translucent? (a) a steel plate (b) butter paper (c) a book (d) your hand
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) yeast (c) a straight stick (d) chalk to mark shadows
33. 33.🕰️ What is a sundial used for? (a) telling the time (b) measuring rain (c) weighing things (d) making rainbows
34. 34.True or false: yeast is not needed for the shadow clock. (a) True (b) False
35. 35.🔦 Which of these is opaque? (a) oily paper (b) a book (c) butter paper (d) air
36. 36.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) yeast (c) a magnet (d) a sunny open place
37. 37.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) clear glass (d) a wooden board
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) the time of day (d) shadow length
40. 40.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed

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