Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 663 · 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 a straight stick for the shadow clock? (a) needed (b) not needed
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
3. 3.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) chalk to mark shadows (d) a straight stick
5. 5.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) turmeric powder (c) chalk to mark shadows (d) a clock to check
6. 6.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a straight stick (c) chalk to mark shadows (d) a clock to check
8. 8.True or false: a magnet is needed for the shadow clock. (a) False (b) True
9. 9.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
10. 10.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
11. 11.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
12. 12.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
13. 13.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
14. 14.🧺 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 straight stick
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) True (b) False
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) mark with chalk (c) sit in the shade (d) look straight at the Sun
17. 17.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
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? True or false: shadow length is what we measure. (a) True (b) False
20. 20.⚖️ 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 stick kept upright (c) the time of day (d) the same spot
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same stick (b) the stick kept upright (c) the same spot (d) shadow length
23. 23.🔍 Which is the odd one out? (a) a wooden board (b) frosted glass (c) a steel plate (d) a book
24. 24.🔦 Which of these is translucent? (a) oily paper (b) clear plastic film (c) a brick (d) clear glass
25. 25.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.True or false: a balloon is not needed for the shadow clock. (a) True (b) False
29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) not needed (b) needed
30. 30.⚖️ 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
31. 31.🔦 Which of these is opaque? (a) a book (b) clean water (c) tissue paper (d) frosted glass
32. 32.🔦 Which of these is translucent? (a) a brick (b) clear plastic film (c) a wooden board (d) butter paper
33. 33.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
34. 34.True or false: frosted glass is opaque. (a) True (b) False
35. 35.True or false: yeast is not needed for the shadow clock. (a) False (b) True
36. 36.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a raincoat (d) a cap or hat
37. 37.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
38. 38.🔍 Which is the odd one out? (a) a book (b) butter paper (c) a wooden board (d) your hand
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) chalk to mark shadows (d) a magnet

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