Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 91 · 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.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
2. 2.🧺 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) yeast (d) a clock to check
3. 3.🔦 Which of these is translucent? (a) your hand (b) clear plastic film (c) butter paper (d) a wooden board
4. 4.True or false: frosted glass is transparent. (a) True (b) False
5. 5.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
6. 6.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) clear plastic film (b) frosted glass (c) oily paper (d) butter paper
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) True (b) False
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.🔦 Which of these is translucent? (a) a book (b) oily paper (c) clear plastic film (d) a brick
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the same stick (c) the stick kept upright (d) the time of day
12. 12.🔍 Which is the odd one out? (a) your hand (b) a steel plate (c) a book (d) clear glass
13. 13.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
14. 14.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
15. 15.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) mark with chalk (c) sit in the shade (d) wear a cap
16. 16.True or false: chalk to mark shadows is needed for the shadow clock. (a) False (b) True
17. 17.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a battery cell (c) a straight stick (d) a clock to check
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
19. 19.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) round (d) long
20. 20.⚖️ 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
21. 21.True or false: turmeric powder is needed for the shadow clock. (a) False (b) True
22. 22.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
23. 23.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
24. 24.⚖️ 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
25. 25.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
26. 26.⚖️ 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) True (b) False
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) butter paper (d) air
29. 29.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a magnet (b) a clock to check (c) chalk to mark shadows (d) a straight stick
30. 30.🔍 Which is the odd one out? (a) a steel plate (b) your hand (c) a brick (d) frosted glass
31. 31.⚖️ 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
32. 32.🕰️ What is a sundial used for? (a) weighing things (b) telling the time (c) making rainbows (d) measuring rain
33. 33.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) yeast (d) a battery cell
34. 34.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) chalk to mark shadows (c) a balloon (d) a battery cell
35. 35.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
36. 36.⚖️ 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) shadow length (d) the time of day
37. 37.🔦 Which of these is translucent? (a) clear plastic film (b) clean water (c) your hand (d) frosted glass
38. 38.⚖️ 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
39. 39.True or false: your hand is translucent. (a) True (b) False
40. 40.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater

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