Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 873 · 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.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) the stick grows (c) Earth keeps spinning (d) the ground slides
2. 2.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) chalk to mark shadows (c) a magnet (d) a straight stick
3. 3.True or false: chalk to mark shadows is needed for the shadow clock. (a) True (b) False
4. 4.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
5. 5.🧺 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) yeast
6. 6.🧺 Which of these is not needed for the shadow clock? (a) a mirror (b) a straight stick (c) a clock to check (d) a sunny open place
7. 7.True or false: a brick is transparent. (a) False (b) True
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is kept the same. (a) False (b) True
9. 9.⚖️ 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
10. 10.⚖️ 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
11. 11.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
12. 12.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
13. 13.True or false: a mirror is not needed for the shadow clock. (a) False (b) True
14. 14.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
15. 15.🔦 Is frosted glass opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
16. 16.True or false: air is translucent. (a) False (b) True
17. 17.📘 Why does a shadow form? (a) light bends round it (b) the ground is dark (c) the object is cold (d) an object blocks light
18. 18.🔦 Which of these is translucent? (a) clear plastic film (b) clear glass (c) oily paper (d) a book
19. 19.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a sunny open place (b) a balloon (c) a straight stick (d) chalk to mark shadows
20. 20.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a mirror (c) a clock to check (d) a magnet
21. 21.🔍 Which is the odd one out? (a) clear glass (b) a brick (c) a steel plate (d) a book
22. 22.⚖️ 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
23. 23.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a cap or hat (d) a raincoat
24. 24.🔍 Which is the odd one out? (a) a brick (b) a steel plate (c) a wooden board (d) air
25. 25.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
26. 26.🔦 Is tissue paper opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
27. 27.⚖️ 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
28. 28.🔍 Which is the odd one out? (a) clear glass (b) air (c) oily paper (d) clean water
29. 29.🔍 Which is the odd one out? (a) clean water (b) clear glass (c) clear plastic film (d) frosted glass
30. 30.🛟 While watching shadows outdoors, what must you never do? (a) look straight at the Sun (b) sit in the shade (c) wear a cap (d) mark with chalk
31. 31.🔦 Which of these is opaque? (a) oily paper (b) a wooden board (c) air (d) clear glass
32. 32.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the stick kept upright (b) the time of day (c) shadow length
33. 33.⚖️ 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 keep it the same (c) we measure it
34. 34.⚖️ 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
35. 35.True or false: tissue paper is opaque. (a) True (b) False
36. 36.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
38. 38.🌞 When is a stick’s shadow the shortest? (a) late evening (b) early morning (c) around noon (d) at night
39. 39.⚖️ 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) True (b) False
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a balloon (c) a sunny open place (d) a clock to check

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