Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 353 · 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.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) yeast (c) a sunny open place (d) a straight stick
3. 3.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
4. 4.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.⚖️ 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) the time of day (c) shadow length (d) the same stick
6. 6.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) runs faster (c) shows two times (d) does not work well
7. 7.🧺 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 battery cell (d) a sunny open place
8. 8.🔦 Is frosted glass opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
9. 9.🛟 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
10. 10.🔦 Is a steel plate opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
11. 11.🧺 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) a straight stick (d) turmeric powder
12. 12.🧺 Do we need yeast for the shadow clock? (a) not needed (b) needed
13. 13.🔦 Which of these is transparent? (a) butter paper (b) clear glass (c) a wooden board (d) oily paper
14. 14.🧺 Do we need a balloon for the shadow clock? (a) needed (b) not needed
15. 15.⚖️ 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) True (b) False
16. 16.🧺 Do we need chalk to mark shadows for the shadow clock? (a) needed (b) not needed
17. 17.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) up (c) east (d) west
18. 18.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) yeast
19. 19.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a magnet (c) a straight stick (d) a sunny open place
20. 20.🔍 Which is the odd one out? (a) frosted glass (b) butter paper (c) clean water (d) oily paper
21. 21.🔦 Which of these is transparent? (a) a wooden board (b) butter paper (c) clean water (d) frosted glass
22. 22.🧺 Do we need a magnet for the shadow clock? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a balloon (c) chalk to mark shadows (d) a sunny open place
24. 24.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) sit in the shade (c) look straight at the Sun (d) wear a cap
25. 25.⚖️ 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
26. 26.🕰️ What is a sundial used for? (a) measuring rain (b) making rainbows (c) weighing things (d) telling the time
27. 27.⚖️ 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
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 change it (b) we measure it (c) we keep it the same
29. 29.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) around noon (d) at night
30. 30.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) air (d) oily paper
31. 31.🔦 Which of these is transparent? (a) clear plastic film (b) a brick (c) a steel plate (d) a book
32. 32.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) a book (d) clear plastic film
33. 33.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) yeast (c) a battery cell (d) a mirror
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a straight stick
35. 35.🌍 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
36. 36.🔦 Is clear plastic film opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
37. 37.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
38. 38.⚖️ 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
39. 39.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
40. 40.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False

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