Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 906 · 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.🔍 Which is the odd one out? (a) butter paper (b) oily paper (c) frosted glass (d) clean water
2. 2.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) short (d) long
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a balloon (d) a sunny open place
4. 4.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
6. 6.🔦 Which of these is opaque? (a) oily paper (b) air (c) clear glass (d) a brick
7. 7.⚖️ 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 stick kept upright (d) the time of day
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a clock to check (d) a straight stick
9. 9.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
10. 10.🧺 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 straight stick
11. 11.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
12. 12.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
13. 13.True or false: clean water is opaque. (a) True (b) False
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) yeast (c) a straight stick (d) a sunny open place
15. 15.⚖️ 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 keep it the same (c) we change it
16. 16.🔍 Which is the odd one out? (a) clear plastic film (b) a wooden board (c) a steel plate (d) your hand
17. 17.True or false: a wooden board is opaque. (a) True (b) False
18. 18.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
21. 21.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
22. 22.🧺 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 straight stick (d) turmeric powder
23. 23.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
24. 24.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
25. 25.🔦 Which of these is translucent? (a) a steel plate (b) your hand (c) oily paper (d) clear plastic film
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is the one thing we change. (a) True (b) False
27. 27.True or false: a balloon is needed for the shadow clock. (a) False (b) True
28. 28.⚖️ 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 same stick (c) shadow length
29. 29.🔦 Which of these is translucent? (a) your hand (b) clear glass (c) tissue paper (d) a book
30. 30.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) making rainbows (d) weighing things
31. 31.🌞 When is a stick’s shadow the shortest? (a) at night (b) early morning (c) around noon (d) late evening
32. 32.True or false: oily paper is translucent. (a) True (b) False
33. 33.🧺 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) a magnet
34. 34.⚖️ 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 change it (c) we keep it the same
35. 35.⚖️ 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 same spot
36. 36.⚖️ 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
37. 37.🧺 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) yeast (d) chalk to mark shadows
38. 38.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.True or false: a brick is translucent. (a) False (b) True

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