Shadow and Sundial Experiment Worksheet

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

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