Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 749 · 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? What do we do with “the same spot”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.True or false: clean water is translucent. (a) True (b) False
3. 3.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) a magnet (d) a sunny open place
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) False (b) True
5. 5.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) shows two times (c) runs faster (d) does not work well
6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) west (c) up (d) east
7. 7.🛟 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
8. 8.⚖️ 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
9. 9.⚖️ 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 stick kept upright (d) the same stick
10. 10.🧺 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
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.🔦 Is clear plastic film opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a straight stick (c) chalk to mark shadows (d) a clock to check
15. 15.True or false: oily paper is opaque. (a) True (b) False
16. 16.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a magnet (d) a straight stick
17. 17.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.🔦 Which of these is translucent? (a) clean water (b) your hand (c) butter paper (d) a wooden board
20. 20.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
21. 21.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
22. 22.True or false: a clock to check is needed for the shadow clock. (a) False (b) True
23. 23.🔦 Which of these is opaque? (a) clear plastic film (b) clear glass (c) oily paper (d) a brick
24. 24.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
25. 25.🔦 Which of these is opaque? (a) a book (b) clear plastic film (c) frosted glass (d) oily paper
26. 26.🔦 Which of these is translucent? (a) clear glass (b) clear plastic film (c) a steel plate (d) tissue paper
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the stick kept upright (d) the time of day
28. 28.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) coloured (b) brighter (c) bigger (d) smaller
29. 29.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a battery cell (c) a straight stick (d) yeast
30. 30.📘 Why does a shadow form? (a) the ground is dark (b) the object is cold (c) an object blocks light (d) light bends round it
31. 31.⚖️ 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
32. 32.🔦 Is your hand opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
33. 33.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) air (d) tissue paper
35. 35.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same stick (b) shadow length (c) the time of day
37. 37.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
39. 39.🔍 Which is the odd one out? (a) a book (b) clear glass (c) air (d) clean water
40. 40.🧺 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 sunny open place (d) a mirror

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