Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 199 · 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.🧺 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 magnet (d) a clock to check
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 straight stick (d) turmeric powder
3. 3.True or false: clear glass is opaque. (a) False (b) True
4. 4.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) chalk to mark shadows (d) a balloon
5. 5.🔍 Which is the odd one out? (a) clear plastic film (b) air (c) clear glass (d) oily paper
6. 6.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
7. 7.🧺 Do we need yeast for the shadow clock? (a) needed (b) not needed
8. 8.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
9. 9.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.🔦 Which of these is translucent? (a) air (b) clear glass (c) oily paper (d) a brick
12. 12.🔍 Which is the odd one out? (a) a book (b) butter paper (c) your hand (d) a steel plate
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a woollen sweater (c) a cap or hat (d) a raincoat
16. 16.True or false: a battery cell is not needed for the shadow clock. (a) False (b) True
17. 17.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) short (c) long (d) round
18. 18.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is what we measure. (a) False (b) True
19. 19.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the time of day (b) shadow length (c) the same stick (d) the stick kept upright
20. 20.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.True or false: a balloon is needed for the shadow clock. (a) True (b) False
22. 22.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a mirror (b) a sunny open place (c) a clock to check (d) chalk to mark shadows
23. 23.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
24. 24.🧺 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 battery cell (d) a clock to check
25. 25.🧺 Which of these is needed for the shadow clock? (a) a mirror (b) yeast (c) a magnet (d) a clock to check
26. 26.🧺 Which of these is needed for the shadow clock? (a) yeast (b) a magnet (c) a battery cell (d) a sunny open place
27. 27.🔦 Which of these is opaque? (a) butter paper (b) clear plastic film (c) clean water (d) a wooden board
28. 28.🔮 Predict: on a fully cloudy day, the sundial ___. (a) runs faster (b) shows two times (c) does not work well (d) works better
29. 29.True or false: a straight stick is needed for the shadow clock. (a) False (b) True
30. 30.🧺 Do we need a mirror for the shadow clock? (a) not needed (b) needed
31. 31.⚖️ 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 stick kept upright (d) the time of day
32. 32.🔦 Is a wooden board opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
33. 33.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is the one thing we change. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.True or false: clear glass is transparent. (a) True (b) False
37. 37.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) chalk to mark shadows (c) a straight stick (d) a clock to check
38. 38.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) look straight at the Sun (c) mark with chalk (d) sit in the shade
39. 39.⚖️ 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) True (b) False
40. 40.True or false: clear plastic film is transparent. (a) True (b) False

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