Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 281 · 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? True or false: the same spot is what we measure. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) frosted glass (b) clean water (c) oily paper (d) tissue paper
3. 3.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a balloon (c) a battery cell (d) a clock to check
4. 4.🔦 Which of these is opaque? (a) clear glass (b) frosted glass (c) a wooden board (d) air
5. 5.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clear glass (d) your hand
6. 6.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a battery cell (c) a clock to check (d) a sunny open place
7. 7.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a mirror (c) a sunny open place (d) a straight stick
9. 9.🔦 Which of these is translucent? (a) a steel plate (b) your hand (c) a brick (d) frosted glass
10. 10.⚖️ 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
11. 11.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
12. 12.True or false: air is transparent. (a) True (b) False
13. 13.⚖️ 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 same stick (d) the stick kept upright
14. 14.True or false: a sunny open place is needed for the shadow clock. (a) False (b) True
15. 15.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) smaller (c) coloured (d) bigger
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
17. 17.🌍 Why does the stick’s shadow move during the day? (a) the ground slides (b) Earth keeps spinning (c) the stick walks (d) the stick grows
18. 18.⚖️ 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
19. 19.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
20. 20.🔍 Which is the odd one out? (a) clean water (b) clear plastic film (c) tissue paper (d) clear glass
21. 21.🔦 Which of these is transparent? (a) a book (b) a wooden board (c) a steel plate (d) air
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
24. 24.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a straight stick (c) a mirror (d) a sunny open place
25. 25.⚖️ 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
26. 26.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
27. 27.🧺 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 sunny open place (d) a balloon
28. 28.True or false: oily paper is translucent. (a) True (b) False
29. 29.⚖️ 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
30. 30.True or false: clear plastic film is translucent. (a) True (b) False
31. 31.True or false: tissue paper is translucent. (a) True (b) False
32. 32.⚖️ 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
33. 33.⚖️ 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
34. 34.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) west (d) up
35. 35.⚖️ 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 stick kept upright (c) shadow length
36. 36.🔦 Which of these is opaque? (a) air (b) clear plastic film (c) tissue paper (d) a steel plate
37. 37.🔦 Which of these is opaque? (a) oily paper (b) a book (c) clear plastic film (d) butter paper
38. 38.True or false: butter paper is translucent. (a) False (b) True
39. 39.True or false: clear plastic film is opaque. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) a book

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