Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 631 · 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.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
2. 2.🔦 Which of these is transparent? (a) a steel plate (b) clear glass (c) butter paper (d) a brick
3. 3.⚖️ 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 stick (b) shadow length (c) the same spot (d) the time of day
4. 4.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) does not work well (d) shows two times
5. 5.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
6. 6.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
7. 7.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) False (b) True
9. 9.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) a magnet (c) a sunny open place (d) yeast
10. 10.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) turmeric powder (c) a clock to check (d) a sunny open place
11. 11.⚖️ 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) False (b) True
12. 12.True or false: tissue paper is transparent. (a) False (b) True
13. 13.🛟 What should you wear for a long time in the hot sun? (a) a raincoat (b) nothing on your head (c) a woollen sweater (d) a cap or hat
14. 14.🔦 Which of these is translucent? (a) a wooden board (b) a brick (c) clean water (d) butter paper
15. 15.True or false: yeast is needed for the shadow clock. (a) True (b) False
16. 16.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) west (d) up
18. 18.🔦 Which of these is translucent? (a) clear plastic film (b) a brick (c) clear glass (d) oily paper
19. 19.🔦 Which of these is translucent? (a) a wooden board (b) tissue paper (c) a steel plate (d) clear plastic film
20. 20.🔦 Which of these is transparent? (a) a steel plate (b) oily paper (c) butter paper (d) clear plastic film
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.True or false: chalk to mark shadows is not needed for the shadow clock. (a) False (b) True
23. 23.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
24. 24.True or false: turmeric powder is needed for the shadow clock. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a book (b) a steel plate (c) clean water (d) a brick
26. 26.⚖️ 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 same spot (c) shadow length
27. 27.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a mirror (c) chalk to mark shadows (d) a magnet
28. 28.⚖️ 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
29. 29.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ 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 measure it (c) we keep it the same
31. 31.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
32. 32.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
33. 33.True or false: oily paper is translucent. (a) False (b) True
34. 34.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
35. 35.True or false: a mirror is not needed for the shadow clock. (a) True (b) False
36. 36.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) short (d) long
37. 37.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) a magnet (c) a straight stick (d) turmeric powder
38. 38.⚖️ 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
39. 39.⚖️ 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 change it (c) we measure it
40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False

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