Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 564 · 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: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a balloon (d) a sunny open place
3. 3.🔦 Is air opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
4. 4.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a balloon (d) a clock to check
5. 5.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) frosted glass (d) a wooden board
6. 6.True or false: clean water is transparent. (a) True (b) False
7. 7.True or false: a magnet is needed for the shadow clock. (a) False (b) True
8. 8.⚖️ 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 spot (c) the same stick (d) the stick kept upright
9. 9.⚖️ 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
10. 10.🔦 Which of these is opaque? (a) a wooden board (b) oily paper (c) butter paper (d) tissue paper
11. 11.True or false: chalk to mark shadows is not needed for the shadow clock. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) a wooden board (d) clean water
13. 13.🔦 Which of these is opaque? (a) a brick (b) air (c) clean water (d) oily paper
14. 14.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) your hand (d) air
16. 16.🔍 Which is the odd one out? (a) a book (b) air (c) clear glass (d) clean water
17. 17.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) turmeric powder (d) a clock to check
18. 18.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
19. 19.⚖️ 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) the stick kept upright (d) shadow length
20. 20.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
21. 21.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a clock to check (c) a straight stick (d) a magnet
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
24. 24.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
25. 25.⚖️ 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 keep it the same (c) we measure it
26. 26.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
27. 27.🔦 Which of these is opaque? (a) your hand (b) butter paper (c) clear glass (d) oily paper
28. 28.⚖️ 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
29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🔦 Which of these is transparent? (a) clear plastic film (b) tissue paper (c) butter paper (d) a book
32. 32.📘 Why does a shadow form? (a) the ground is dark (b) an object blocks light (c) light bends round it (d) the object is cold
33. 33.True or false: a brick is opaque. (a) True (b) False
34. 34.🔦 Which of these is translucent? (a) clear plastic film (b) a steel plate (c) tissue paper (d) air
35. 35.🔦 Is clear glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) yeast
37. 37.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the ground slides (c) the stick grows (d) Earth keeps spinning
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) False (b) True
39. 39.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) missing (c) long (d) short

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