Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 525 · 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) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
2. 2.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) clear glass (d) a book
3. 3.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a straight stick (c) yeast (d) a battery cell
4. 4.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a battery cell (d) a clock to check
5. 5.🔦 Which of these is translucent? (a) air (b) clear plastic film (c) tissue paper (d) clean water
6. 6.🔦 Which of these is transparent? (a) a book (b) a wooden board (c) a steel plate (d) clear plastic film
7. 7.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
8. 8.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) brighter (c) coloured (d) bigger
9. 9.⚖️ 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
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.True or false: clear glass is opaque. (a) True (b) False
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same stick (d) the same spot
13. 13.🔍 Which is the odd one out? (a) a book (b) a brick (c) a wooden board (d) clean water
14. 14.True or false: a brick is transparent. (a) True (b) False
15. 15.⚖️ 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
16. 16.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a clock to check (c) chalk to mark shadows (d) a straight stick
17. 17.🔦 Which of these is opaque? (a) clear plastic film (b) a steel plate (c) butter paper (d) clear glass
18. 18.True or false: a book is opaque. (a) True (b) False
19. 19.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) tissue paper (b) clear plastic film (c) air (d) clear glass
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
23. 23.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round
24. 24.🧺 Do we need a battery cell 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: the time of day is the one thing we change. (a) False (b) True
26. 26.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) shadow length (c) the time of day
28. 28.🔦 Which of these is opaque? (a) your hand (b) tissue paper (c) clear glass (d) oily paper
29. 29.🕰️ What is a sundial used for? (a) making rainbows (b) telling the time (c) measuring rain (d) weighing things
30. 30.⚖️ 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
31. 31.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
32. 32.⚖️ 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) shadow length (c) the stick kept upright (d) the same stick
33. 33.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) around noon (d) early morning
34. 34.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
35. 35.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) the stick walks (c) Earth keeps spinning (d) the stick grows
36. 36.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a battery cell (c) chalk to mark shadows (d) a clock to check
37. 37.⚖️ 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 spot (c) shadow length
38. 38.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) air (d) your hand
39. 39.⚖️ 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
40. 40.True or false: a wooden board is opaque. (a) False (b) True

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