Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 567 · 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.🌞 When is a stick’s shadow the shortest? (a) early morning (b) at night (c) late evening (d) around noon
2. 2.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) a battery cell (d) a straight stick
3. 3.True or false: butter paper is translucent. (a) True (b) False
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) shadow length (d) the time of day
5. 5.🔍 Which is the odd one out? (a) your hand (b) frosted glass (c) butter paper (d) tissue paper
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) butter paper (b) frosted glass (c) a brick (d) tissue paper
8. 8.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) oily paper (d) a book
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) a sunny open place (d) a straight stick
10. 10.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
11. 11.🔍 Which is the odd one out? (a) clear glass (b) a brick (c) a book (d) a steel plate
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a mirror (c) a straight stick (d) a clock to check
14. 14.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a sunny open place
15. 15.True or false: a battery cell is not needed for the shadow clock. (a) True (b) False
16. 16.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) Earth keeps spinning (c) the stick walks (d) the ground slides
17. 17.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) look straight at the Sun (d) mark with chalk
18. 18.🔦 Which of these is opaque? (a) clear plastic film (b) a wooden board (c) clean water (d) oily paper
19. 19.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) a clock to check (d) turmeric powder
20. 20.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the shadow clock? (a) a sunny open place (b) a mirror (c) a magnet (d) turmeric powder
22. 22.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) long (c) round (d) short
23. 23.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) a sunny open place (d) a straight stick
24. 24.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
25. 25.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
26. 26.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) False (b) True
27. 27.⚖️ 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
28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) works better (c) shows two times (d) runs faster
29. 29.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) oily paper (b) air (c) clear glass (d) clear plastic film
31. 31.🔦 Which of these is opaque? (a) oily paper (b) frosted glass (c) air (d) your hand
32. 32.🔦 Which of these is translucent? (a) clear plastic film (b) a book (c) tissue paper (d) a steel plate
33. 33.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
34. 34.🔦 Is tissue paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
35. 35.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) chalk to mark shadows (d) a magnet
36. 36.⚖️ 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 stick kept upright
37. 37.⚖️ 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
38. 38.True or false: clear plastic film is transparent. (a) False (b) True
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) yeast (d) a clock to check
40. 40.True or false: frosted glass is opaque. (a) False (b) True

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