Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 945 · 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 is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) frosted glass
2. 2.🔦 Which of these is opaque? (a) oily paper (b) butter paper (c) tissue paper (d) a book
3. 3.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
4. 4.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) up (c) west (d) north
5. 5.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
6. 6.⚖️ 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
7. 7.⚖️ 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 same spot
8. 8.True or false: clear glass is opaque. (a) True (b) False
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) chalk to mark shadows (d) a clock to check
10. 10.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
11. 11.⚖️ 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) the time of day (c) the same spot (d) the same stick
12. 12.⚖️ 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 stick (c) the same spot (d) the time of day
13. 13.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
14. 14.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a balloon (d) a battery cell
15. 15.True or false: clean water is translucent. (a) False (b) True
16. 16.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) at night (d) around noon
17. 17.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) runs faster (c) works better (d) shows two times
18. 18.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) smaller (d) bigger
19. 19.🔦 Which of these is translucent? (a) tissue paper (b) a book (c) clear plastic film (d) air
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) turmeric powder (d) a sunny open place
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
23. 23.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) telling the time (d) weighing things
24. 24.⚖️ 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 change it (c) we measure it
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
27. 27.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a straight stick (d) yeast
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a straight stick
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) False (b) True
30. 30.🔦 Which of these is translucent? (a) a wooden board (b) your hand (c) oily paper (d) a book
31. 31.🧺 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 battery cell (d) a sunny open place
32. 32.🔦 Which of these is transparent? (a) clear glass (b) butter paper (c) a steel plate (d) frosted glass
33. 33.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a balloon (c) a straight stick (d) a clock to check
35. 35.True or false: yeast is not needed for the shadow clock. (a) False (b) True
36. 36.🧺 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) a balloon
37. 37.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
38. 38.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
39. 39.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) air (d) tissue paper
40. 40.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

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