Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 549 · 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.🧺 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 balloon (d) chalk to mark shadows
2. 2.True or false: air is translucent. (a) True (b) False
3. 3.⚖️ 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) shadow length (c) the same spot (d) the time of day
4. 4.True or false: clear glass is opaque. (a) False (b) True
5. 5.🧺 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 battery cell
6. 6.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
7. 7.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) air (b) clear plastic film (c) clear glass (d) frosted glass
10. 10.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
12. 12.⚖️ 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
13. 13.True or false: clear glass is transparent. (a) False (b) True
14. 14.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
15. 15.True or false: a magnet is needed for the shadow clock. (a) True (b) False
16. 16.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
17. 17.🧺 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) a mirror (d) a straight stick
18. 18.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) a mirror (c) a battery cell (d) a magnet
19. 19.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
20. 20.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
21. 21.🔦 Which of these is translucent? (a) clean water (b) your hand (c) oily paper (d) clear plastic film
22. 22.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) does not work well (c) works better (d) runs faster
23. 23.⚖️ 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 change it (c) we measure it
24. 24.⚖️ 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) the stick kept upright (c) shadow length
25. 25.🔍 Which is the odd one out? (a) your hand (b) a book (c) a wooden board (d) clear glass
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the time of day (c) the same spot (d) shadow length
27. 27.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) a steel plate (d) frosted glass
28. 28.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
30. 30.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) a magnet (d) a balloon
32. 32.🔦 Which of these is transparent? (a) a brick (b) clear glass (c) tissue paper (d) a book
33. 33.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
34. 34.True or false: a wooden board is opaque. (a) False (b) True
35. 35.🔦 Which of these is translucent? (a) a steel plate (b) clear plastic film (c) your hand (d) frosted glass
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.True or false: air is transparent. (a) False (b) True
38. 38.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
39. 39.⚖️ 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
40. 40.🔦 Is clear glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

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