Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 307 · 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.True or false: air is transparent. (a) False (b) True
2. 2.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the time of day (b) the same stick (c) the same spot (d) the stick kept upright
3. 3.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
4. 4.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
5. 5.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
6. 6.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) look straight at the Sun (c) wear a cap (d) sit in the shade
7. 7.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
10. 10.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) turmeric powder
11. 11.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) yeast (d) a clock to check
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) a book (b) clear plastic film (c) a steel plate (d) a wooden board
14. 14.⚖️ 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
15. 15.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
16. 16.🔦 Which of these is opaque? (a) clear plastic film (b) clean water (c) your hand (d) oily paper
17. 17.🔍 Which is the odd one out? (a) a book (b) butter paper (c) oily paper (d) frosted glass
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) the same stick (c) shadow length (d) the stick kept upright
19. 19.🔦 Which of these is transparent? (a) butter paper (b) air (c) a steel plate (d) tissue paper
20. 20.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) a straight stick (d) chalk to mark shadows
21. 21.⚖️ 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) False (b) True
22. 22.🔍 Which is the odd one out? (a) a steel plate (b) butter paper (c) oily paper (d) frosted glass
23. 23.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a battery cell
25. 25.🔍 Which is the odd one out? (a) air (b) tissue paper (c) clear glass (d) clear plastic film
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a sunny open place (d) a straight stick
29. 29.⚖️ 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 keep it the same (c) we change it
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.🧺 Do we need a straight stick for the shadow clock? (a) needed (b) not needed
32. 32.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) does not work well (c) works better (d) shows two times
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is what we measure. (a) True (b) False
34. 34.⚖️ 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 spot
35. 35.🔦 Which of these is translucent? (a) air (b) frosted glass (c) clear glass (d) a steel plate
36. 36.True or false: your hand is translucent. (a) True (b) False
37. 37.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) turmeric powder (c) a battery cell (d) a clock to check
38. 38.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.True or false: a balloon is not needed for the shadow clock. (a) True (b) False

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