Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 470 · 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? Which of these is what we measure? (a) the stick kept upright (b) the time of day (c) shadow length (d) the same spot
2. 2.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) a battery cell (d) a mirror
3. 3.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) yeast (c) a magnet (d) a straight stick
4. 4.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
5. 5.True or false: butter paper is transparent. (a) False (b) True
6. 6.⚖️ 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
7. 7.🔦 Which of these is translucent? (a) a steel plate (b) a book (c) oily paper (d) a wooden board
8. 8.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a magnet (c) a clock to check (d) a sunny open place
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a clock to check (c) a straight stick (d) chalk to mark shadows
11. 11.⚖️ 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
12. 12.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.⚖️ 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) True (b) False
14. 14.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a woollen sweater (d) a raincoat
15. 15.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
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) turmeric powder (d) a clock to check
17. 17.🔦 Which of these is opaque? (a) clean water (b) frosted glass (c) a book (d) oily paper
18. 18.🔍 Which is the odd one out? (a) oily paper (b) a steel plate (c) butter paper (d) tissue paper
19. 19.⚖️ 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 stick (c) the time of day (d) the same spot
20. 20.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller
21. 21.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
22. 22.True or false: a balloon is needed for the shadow clock. (a) False (b) True
23. 23.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
24. 24.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) wear a cap (d) look straight at the Sun
25. 25.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
26. 26.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a clock to check (c) a mirror (d) a straight stick
27. 27.True or false: a balloon 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 sunny open place (b) a straight stick (c) a balloon (d) a clock to check
29. 29.⚖️ 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
30. 30.🔍 Which is the odd one out? (a) your hand (b) clear glass (c) air (d) clear plastic film
31. 31.True or false: yeast is not needed for the shadow clock. (a) True (b) False
32. 32.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
33. 33.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the ground slides (c) the stick walks (d) the stick grows
34. 34.🔦 Is oily paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
35. 35.🔦 Which of these is opaque? (a) oily paper (b) air (c) butter paper (d) a wooden board
36. 36.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
37. 37.🔦 Which of these is transparent? (a) a wooden board (b) a steel plate (c) clear plastic film (d) oily paper
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) a sunny open place (d) chalk to mark shadows
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) False (b) True
40. 40.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent

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