Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 151 · 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.🛟 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
2. 2.⚖️ 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 same stick (c) the stick kept upright (d) the time of day
3. 3.True or false: a straight stick is not needed for the shadow clock. (a) True (b) False
4. 4.⚖️ 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
5. 5.True or false: air is transparent. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a book (b) clean water (c) air (d) clear glass
7. 7.🧺 Which of these is needed for the shadow clock? (a) a battery cell (b) a balloon (c) a sunny open place (d) turmeric powder
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a magnet (c) a sunny open place (d) chalk to mark shadows
9. 9.🧺 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 sunny open place (d) a balloon
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 keep it the same (b) we change it (c) we measure it
11. 11.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) missing (b) round (c) long (d) short
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 change it (b) we measure it (c) we keep it the same
15. 15.🌞 When is a stick’s shadow the shortest? (a) late evening (b) at night (c) early morning (d) around noon
16. 16.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a clock to check (c) a sunny open place (d) turmeric powder
17. 17.🔦 Is a steel plate opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
18. 18.🔦 Which of these is translucent? (a) air (b) butter paper (c) clear plastic film (d) clear glass
19. 19.⚖️ 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 stick (c) shadow length
20. 20.True or false: your hand is opaque. (a) True (b) False
21. 21.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) runs faster (c) works better (d) does not work well
22. 22.True or false: a straight stick is needed for the shadow clock. (a) True (b) False
23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
24. 24.🧺 Do we need a sunny open place for the shadow clock? (a) not needed (b) needed
25. 25.True or false: a battery cell is needed for the shadow clock. (a) True (b) False
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) chalk to mark shadows (c) a clock to check (d) a balloon
27. 27.⚖️ 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
28. 28.🔦 Which of these is opaque? (a) butter paper (b) a brick (c) clear plastic film (d) oily paper
29. 29.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
30. 30.🔦 Which of these is transparent? (a) oily paper (b) a brick (c) frosted glass (d) clean water
31. 31.True or false: clear glass is transparent. (a) False (b) True
32. 32.⚖️ 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
33. 33.🔦 Which of these is translucent? (a) your hand (b) tissue paper (c) clean water (d) a wooden board
34. 34.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) oily paper (b) a steel plate (c) tissue paper (d) butter paper
36. 36.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a battery cell (b) a clock to check (c) a sunny open place (d) a straight stick
37. 37.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🔦 Is air opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
39. 39.True or false: a brick is opaque. (a) True (b) False
40. 40.🧺 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) yeast (d) a straight stick

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