Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 290 · 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.⚖️ 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) True (b) False
2. 2.⚖️ 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) shadow length (c) the same spot (d) the stick kept upright
3. 3.🔦 Which of these is opaque? (a) butter paper (b) a steel plate (c) clean water (d) air
4. 4.🔦 Which of these is opaque? (a) oily paper (b) tissue paper (c) clear glass (d) a book
5. 5.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) tissue paper (b) clear glass (c) frosted glass (d) butter paper
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a clock to check (d) a straight stick
8. 8.🔦 Which of these is transparent? (a) tissue paper (b) frosted glass (c) clean water (d) a steel plate
9. 9.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) late evening (d) around noon
10. 10.🕰️ What is a sundial used for? (a) weighing things (b) making rainbows (c) telling the time (d) measuring rain
11. 11.True or false: a wooden board is opaque. (a) False (b) True
12. 12.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
13. 13.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a battery cell (c) a straight stick (d) a clock to check
14. 14.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
15. 15.🔦 Which of these is translucent? (a) tissue paper (b) your hand (c) clean water (d) a steel plate
16. 16.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) yeast (d) chalk to mark shadows
17. 17.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) a straight stick (d) a balloon
18. 18.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
19. 19.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) chalk to mark shadows
21. 21.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) tissue paper (d) clean water
22. 22.🔍 Which is the odd one out? (a) a wooden board (b) butter paper (c) oily paper (d) tissue paper
23. 23.🔦 Is butter paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
24. 24.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a magnet (d) yeast
25. 25.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
26. 26.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) a book (b) air (c) clear glass (d) clear plastic film
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
29. 29.⚖️ 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
30. 30.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
31. 31.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the stick walks (c) Earth keeps spinning (d) the ground slides
32. 32.🧺 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 balloon (d) a clock to check
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🔦 Which of these is transparent? (a) butter paper (b) clear plastic film (c) a steel plate (d) frosted glass
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) smaller (c) bigger (d) brighter
38. 38.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 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) yeast

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