Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 593 · 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 the one thing we change? (a) the same spot (b) shadow length (c) the same stick (d) the time of day
2. 2.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
3. 3.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) the same stick (c) the same spot (d) shadow length
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
5. 5.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
6. 6.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.⚖️ 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
8. 8.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) sit in the shade (d) mark with chalk
9. 9.🔍 Which is the odd one out? (a) oily paper (b) your hand (c) frosted glass (d) butter paper
10. 10.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
11. 11.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
12. 12.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
13. 13.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) True (b) False
15. 15.True or false: a balloon is needed for the shadow clock. (a) True (b) False
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a straight stick (c) turmeric powder (d) a clock to check
18. 18.🕰️ What is a sundial used for? (a) measuring rain (b) telling the time (c) weighing things (d) making rainbows
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a straight stick (c) chalk to mark shadows (d) a clock to check
20. 20.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
21. 21.🌍 Why does the stick’s shadow move during the day? (a) the stick grows (b) the ground slides (c) the stick walks (d) Earth keeps spinning
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is kept the same. (a) True (b) False
23. 23.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a balloon (d) chalk to mark shadows
24. 24.🔦 Is a brick opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
25. 25.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) oily paper
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a sunny open place (c) yeast (d) chalk to mark shadows
27. 27.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
28. 28.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) chalk to mark shadows (c) a sunny open place (d) a straight stick
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a straight stick (c) chalk to mark shadows (d) a sunny open place
30. 30.True or false: a wooden board is translucent. (a) False (b) True
31. 31.True or false: a steel plate is opaque. (a) False (b) True
32. 32.⚖️ 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
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) False (b) True
34. 34.🔦 Which of these is transparent? (a) clear glass (b) butter paper (c) a wooden board (d) a brick
35. 35.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
36. 36.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
37. 37.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) yeast (d) a clock to check
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a clock to check (c) a battery cell (d) a straight stick
39. 39.🔦 Which of these is opaque? (a) butter paper (b) a steel plate (c) frosted glass (d) oily paper
40. 40.⚖️ 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 keep it the same (c) we measure it

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