Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 468 · 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? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a straight stick (c) yeast (d) a sunny open place
4. 4.True or false: clean water is transparent. (a) False (b) True
5. 5.⚖️ 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
6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) up (c) north (d) east
7. 7.🔍 Which is the odd one out? (a) clean water (b) your hand (c) clear glass (d) clear plastic film
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.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a clock to check (d) a mirror
10. 10.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
11. 11.🔍 Which is the odd one out? (a) a book (b) oily paper (c) frosted glass (d) tissue paper
12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) round (d) long
13. 13.⚖️ 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) False (b) True
14. 14.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) look straight at the Sun (d) mark with chalk
15. 15.True or false: clear glass is transparent. (a) False (b) True
16. 16.🧺 Which of these is needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) yeast (d) a mirror
17. 17.🧺 Which of these is needed for the shadow clock? (a) turmeric powder (b) chalk to mark shadows (c) a balloon (d) a battery cell
18. 18.🕰️ What is a sundial used for? (a) making rainbows (b) weighing things (c) measuring rain (d) telling the time
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) shadow length (b) the time of day (c) the stick kept upright
21. 21.True or false: turmeric powder is not needed for the shadow clock. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a steel plate (b) clear plastic film (c) clean water (d) clear glass
23. 23.True or false: frosted glass is opaque. (a) False (b) True
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a sunny open place (c) turmeric powder (d) a straight stick
25. 25.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
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) shadow length (c) the same stick
27. 27.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) around noon (d) early morning
28. 28.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
29. 29.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a balloon (c) a sunny open place (d) chalk to mark shadows
32. 32.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a sunny open place (c) turmeric powder (d) yeast
33. 33.True or false: air is translucent. (a) True (b) False
34. 34.True or false: a sunny open place is not needed for the shadow clock. (a) True (b) False
35. 35.True or false: a sunny open place is needed for the shadow clock. (a) True (b) False
36. 36.🔦 Which of these is opaque? (a) your hand (b) oily paper (c) tissue paper (d) clear plastic film
37. 37.🔦 Which of these is translucent? (a) oily paper (b) a steel plate (c) clear plastic film (d) your hand
38. 38.🔦 Is your hand opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
39. 39.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
40. 40.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent

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