Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 378 · 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) air (b) clear glass (c) clean water (d) a wooden board
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
3. 3.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
5. 5.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
6. 6.🔦 Which of these is translucent? (a) a book (b) butter paper (c) a steel plate (d) air
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 stick kept upright (b) the same spot (c) the time of day (d) the same stick
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a sunny open place (d) chalk to mark shadows
9. 9.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
10. 10.⚖️ 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 same spot (d) the stick kept upright
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🔦 Which of these is opaque? (a) clean water (b) oily paper (c) a wooden board (d) butter paper
14. 14.⚖️ 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 stick
15. 15.True or false: yeast is needed for the shadow clock. (a) False (b) True
16. 16.🧺 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) a mirror
17. 17.🔦 Which of these is translucent? (a) clean water (b) clear glass (c) frosted glass (d) a book
18. 18.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) does not work well (d) works better
19. 19.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
20. 20.True or false: your hand is translucent. (a) True (b) False
21. 21.⚖️ 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
22. 22.True or false: tissue paper is translucent. (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) round (d) long
24. 24.True or false: a mirror is needed for the shadow clock. (a) True (b) False
25. 25.⚖️ 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
26. 26.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
27. 27.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
28. 28.🧺 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 sunny open place
29. 29.True or false: a wooden board is translucent. (a) True (b) False
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
32. 32.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) smaller (b) coloured (c) bigger (d) brighter
33. 33.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) a clock to check (d) chalk to mark shadows
34. 34.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
35. 35.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
36. 36.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a mirror (c) a straight stick (d) turmeric powder
37. 37.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
38. 38.⚖️ 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
39. 39.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
40. 40.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a straight stick (d) a clock to check

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