Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 997 · 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.🌍 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
2. 2.🔦 Is air opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
3. 3.🛟 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
4. 4.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a battery cell (c) a sunny open place (d) a magnet
5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
6. 6.🔦 Is a book opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
7. 7.⚖️ 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
8. 8.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
9. 9.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
10. 10.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a sunny open place
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 time of day (b) the stick kept upright (c) shadow length (d) the same stick
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a clock to check (d) yeast
13. 13.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a raincoat (c) a cap or hat (d) a woollen sweater
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same spot (c) shadow length (d) the same stick
15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) brighter (d) bigger
16. 16.🔍 Which is the odd one out? (a) a book (b) butter paper (c) a wooden board (d) your hand
17. 17.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
18. 18.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
19. 19.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a straight stick (d) a clock to check
20. 20.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) chalk to mark shadows (d) a battery cell
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) a straight stick (d) a sunny open place
22. 22.⚖️ 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 measure it (c) we change it
23. 23.True or false: tissue paper is opaque. (a) True (b) False
24. 24.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) oily paper (d) your hand
25. 25.🔦 Which of these is opaque? (a) tissue paper (b) butter paper (c) your hand (d) frosted glass
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day
27. 27.🕰️ What is a sundial used for? (a) telling the time (b) making rainbows (c) measuring rain (d) weighing things
28. 28.🔦 Which of these is transparent? (a) oily paper (b) clear glass (c) frosted glass (d) your hand
29. 29.🔍 Which is the odd one out? (a) a book (b) tissue paper (c) butter paper (d) oily paper
30. 30.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
31. 31.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) a wooden board (d) clear glass
32. 32.True or false: clean water is translucent. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) air (b) clear glass (c) a steel plate (d) clear plastic film
34. 34.True or false: a clock to check is not needed for the shadow clock. (a) True (b) False
35. 35.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a battery cell
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
37. 37.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a battery cell (c) a clock to check (d) a mirror
38. 38.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
39. 39.True or false: a mirror is needed for the shadow clock. (a) False (b) True
40. 40.True or false: a steel plate is translucent. (a) True (b) False

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