Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 215 · 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.🧺 Which of these is not needed for the shadow clock? (a) yeast (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
2. 2.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) turmeric powder (c) chalk to mark shadows (d) a clock to check
3. 3.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
4. 4.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
5. 5.🛟 While watching shadows outdoors, what must you never do? (a) mark with chalk (b) wear a cap (c) sit in the shade (d) look straight at the Sun
6. 6.True or false: a balloon is not needed for the shadow clock. (a) False (b) True
7. 7.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a clock to check (c) a magnet (d) a straight stick
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.🔍 Which is the odd one out? (a) air (b) clear glass (c) clear plastic film (d) frosted glass
10. 10.🛟 What should you wear for a long time in the hot sun? (a) a cap or hat (b) nothing on your head (c) a raincoat (d) a woollen sweater
11. 11.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) shadow length (b) the time of day (c) the same spot (d) the same stick
12. 12.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) chalk to mark shadows (c) a straight stick (d) turmeric powder
13. 13.True or false: a sunny open place is not needed for the shadow clock. (a) False (b) True
14. 14.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) long (b) missing (c) round (d) short
15. 15.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
16. 16.🔦 Which of these is opaque? (a) a wooden board (b) frosted glass (c) clean water (d) oily paper
17. 17.🔍 Which is the odd one out? (a) tissue paper (b) air (c) clear plastic film (d) clean water
18. 18.True or false: a brick is translucent. (a) True (b) False
19. 19.🔦 Which of these is transparent? (a) a wooden board (b) a book (c) clear glass (d) frosted glass
20. 20.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
21. 21.🧺 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) yeast
22. 22.🧺 Do we need a magnet for the shadow clock? (a) not needed (b) needed
23. 23.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
25. 25.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a balloon (d) chalk to mark shadows
26. 26.🔦 Is a brick opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
27. 27.⚖️ 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 stick kept upright (c) the time of day (d) the same stick
28. 28.🧺 Do we need a sunny open place for the shadow clock? (a) needed (b) not needed
29. 29.🔮 Predict: on a fully cloudy day, the sundial ___. (a) does not work well (b) shows two times (c) runs faster (d) works better
30. 30.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
31. 31.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) east (b) north (c) up (d) west
32. 32.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a mirror (d) a clock to check
33. 33.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
34. 34.🧺 Which of these is needed for the shadow clock? (a) chalk to mark shadows (b) yeast (c) turmeric powder (d) a magnet
35. 35.True or false: a steel plate is translucent. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) oily paper (b) a steel plate (c) tissue paper (d) frosted glass
37. 37.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
38. 38.⚖️ 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
39. 39.True or false: a magnet is needed for the shadow clock. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a wooden board (b) clear plastic film (c) clear glass (d) clean water

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