Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 849 · 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 sunny open place is not needed for the shadow clock. (a) False (b) True
2. 2.⚖️ 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
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) shadow length (b) the same spot (c) the time of day (d) the stick kept upright
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a sunny open place
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
6. 6.🧺 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
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) turmeric powder (c) yeast (d) a magnet
9. 9.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a straight stick (c) a sunny open place (d) a balloon
10. 10.⚖️ 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) True (b) False
11. 11.🔦 Which of these is transparent? (a) your hand (b) a brick (c) frosted glass (d) air
12. 12.🧺 Do we need a battery cell for the shadow clock? (a) not needed (b) needed
13. 13.🔍 Which is the odd one out? (a) clear plastic film (b) clean water (c) clear glass (d) frosted glass
14. 14.🌞 When is a stick’s shadow the shortest? (a) at night (b) late evening (c) early morning (d) around noon
15. 15.⚖️ 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
16. 16.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
17. 17.🔦 Which of these is opaque? (a) butter paper (b) a brick (c) tissue paper (d) frosted glass
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) your hand
20. 20.🔮 Predict: on a fully cloudy day, the sundial ___. (a) works better (b) does not work well (c) runs faster (d) shows two times
21. 21.🔍 Which is the odd one out? (a) a wooden board (b) your hand (c) a book (d) oily paper
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a sunny open place (c) a clock to check (d) yeast
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) chalk to mark shadows (c) a straight stick (d) a sunny open place
26. 26.🔦 Is clear glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.🌍 Why does the stick’s shadow move during the day? (a) Earth keeps spinning (b) the stick grows (c) the stick walks (d) the ground slides
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the stick kept upright (b) the same spot (c) shadow length (d) the time of day
29. 29.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
30. 30.⚖️ 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
31. 31.🛟 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
32. 32.⚖️ 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
33. 33.True or false: a balloon is needed for the shadow clock. (a) True (b) False
34. 34.🔦 Which of these is opaque? (a) clear glass (b) clean water (c) a steel plate (d) frosted glass
35. 35.🛟 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
36. 36.True or false: a magnet is needed for the shadow clock. (a) False (b) True
37. 37.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) long (c) missing (d) short
38. 38.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) a battery cell (c) chalk to mark shadows (d) a sunny open place
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) turmeric powder (c) chalk to mark shadows (d) a sunny open place

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