Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 818 · 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.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
2. 2.⚖️ 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) False (b) True
3. 3.⚖️ 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 same spot (c) the time of day
4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
5. 5.True or false: yeast is needed for the shadow clock. (a) True (b) False
6. 6.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a clock to check (c) a mirror (d) turmeric powder
7. 7.🔍 Which is the odd one out? (a) your hand (b) butter paper (c) oily paper (d) frosted glass
8. 8.⚖️ 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
9. 9.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
10. 10.🧺 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 mirror (d) a straight stick
11. 11.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
12. 12.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
13. 13.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) a sunny open place (d) a clock to check
14. 14.🔍 Which is the odd one out? (a) clear glass (b) frosted glass (c) butter paper (d) oily paper
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) a balloon (c) a battery cell (d) yeast
17. 17.True or false: yeast is not needed for the shadow clock. (a) True (b) False
18. 18.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) telling the time (d) measuring rain
19. 19.🛟 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
20. 20.True or false: butter paper is translucent. (a) False (b) True
21. 21.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) east (c) north (d) west
22. 22.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) a cap or hat (c) a woollen sweater (d) nothing on your head
23. 23.⚖️ 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) True (b) False
24. 24.🔦 Which of these is translucent? (a) clear glass (b) a book (c) your hand (d) tissue paper
25. 25.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a wooden board (d) tissue paper
26. 26.⚖️ 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) False (b) True
27. 27.🧺 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) a balloon
28. 28.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) a sunny open place (d) chalk to mark shadows
29. 29.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
30. 30.🔦 Which of these is opaque? (a) oily paper (b) tissue paper (c) your hand (d) air
31. 31.True or false: clear glass is transparent. (a) False (b) True
32. 32.🔦 Which of these is transparent? (a) your hand (b) a wooden board (c) clear glass (d) oily paper
33. 33.🔍 Which is the odd one out? (a) frosted glass (b) a steel plate (c) a wooden board (d) a brick
34. 34.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
35. 35.🧺 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 battery cell (d) a clock to check
36. 36.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) bigger (c) coloured (d) brighter
37. 37.🧺 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) a balloon
38. 38.⚖️ 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
39. 39.True or false: air is opaque. (a) True (b) False
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a magnet (d) a sunny open place

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